ライフサイエンスコーパス: feather

1 e most familiar of which are remiges (flight feathers).

2 lusions including a partial rachis-dominated feather.

3 nicum hard tick is entangled in a pennaceous feather.

4 same fossil site and horizon as the isolated feather.

5 p with their head turned and tucked in their feathers.

6 disintegrate into powder to condition other feathers.

7 flight and its associated wings with flight feathers.

8 with the evolution and development of flight feathers.

9 t these yellow pigments match those found in feathers.

10 he endemic tree Psidium galapageium on their feathers.

11 d with melanin pigment in situ within extant feathers.

12 coincident with the evolution of pennaceous feathers.

13 ms the evolutionary developmental pathway of feathers.

14 ures associated with the insertion of flight feathers.

15 that melanosomes can be preserved in fossil feathers.

16 ve yielded varied theropod dinosaurs bearing feathers.

17 lles (melanosomes) and colour in extant bird feathers.

18 such as contour feathers, bristles and down feathers.

19 sis are exemplified by the mammary gland and feathers.

20 lopment specify the position and identity of feathers.

21 loyed in the cornification process of modern feathers.

22 with the highest heat dissipation-under the feathers.

23 en heavily exploited for its eggs, meat, and feathers.

24 found that the hooked microstructures fasten feathers across bird species except silent fliers, whose

25 entation in fossil integument beyond that of feathers, allowing for the reconstruction of colour over

26 s establish a continuum of asymmetric flight feathers along the wing, while switch-like modulation of

27 Our study of these Burmese feathers also confirms previous claims, based on two-dim

28 oss bird species except silent fliers, whose feathers also lack the associated Velcro-like noise.

29 Mercury concentrations in feathers also were uncorrelated with mercury concentrati

30 ference time-domain modeling using realistic feather anatomies and experimentally determined refracti

31 ifference in beta-keratin genes expressed in feathered and scaly skin is regulated via typical enhanc

32 onsidered exclusive to modern birds, such as feathers and a furcula, are now known to have first appe

33 ake Ontario by a repeated sampling of breast feathers and blood from recaptured individuals.

34 pe ratios of Hg, carbon, and nitrogen in the feathers and blood of geolocator-tracked little auk Alle

35 ts attaches to the follicles of the remigial feathers and maintains the functional integrity of the w

36 e (delta(2) H) values of metabolically inert feathers and metabolically active liver.

37 lationship evolved relative to the origin of feathers and other novel integumentary structures, such

38 ooctanesulfonate (PFOS) and PFOA in P. major feathers and plasma were significantly and positively co

39 Using stable isotope analysis of feathers and regurgitants collected from sooty terns (On

40 ertebrate carcass, by ripping off any fur or feathers and rolling the flesh into a rounded ball.

41 are absent or at very low concentrations in feathers and several tissues of white recessive canaries

42 he levels of perfluoroalkyl acids (PFAAs) in feathers and the applicability of these structures for t

43 s ago) and their classic small, lightweight, feathered, and winged body plan was pieced together grad

44 y networks show the deep homology of scales, feathers, and hairs.

45 , although birds with lower deltaD values in feathers appeared to have greater concentrations of Hg t

46 Nonlethal sampling of bird blood and feathers are among the more common ways of estimating th

47 Feathers are amongst the most complex epidermal structur

48 Feathers are arranged in a precise pattern in avian skin

49 Flight feathers are composed of a central shaft made up of a ho

50 present study, we report the extent to which feathers are suitable for monitoring PFAA concentrations

51 Feathers are the most complex integumentary structures i

52 Hair and feathers are unique because (1) their stem cells are con

53 ong pennaceous wing feather as well as cover feathers around the body.

54 ted with mechanical processes, generates the feather array.

55 updated colour reconstruction of the entire feather as matte black, with 90% probability.

56 lude the detection of a long pennaceous wing feather as well as cover feathers around the body.

57 s and possible limitations of using nestling feathers as indicators of local mercury exposure.

58 hile our results support the use of nestling feathers as indicators of site-specific mercury exposure

59 entrations in albumen and nestling blood and feathers as predictors of 6 measures of reproductive suc

60 e novel insights into the early evolution of feathers at the sub-cellular level, and unequivocally de

61 s the largest theropod with long, pennaceous feathers attached to the lower hind limbs (that is, 'hin

62 by antibody neutralization resulted in dual feather axes formation.

63 chemotherapeutic agents, whereas the rachis (feather axis) remains unperturbed.

64 If true, these findings shift the origin of feathers back 80 million years before the origin of bird

65 eparation in the corresponding region of the feather barb.

66 ysis shows that nanostructure in single bird feather barbs can be varied continuously by controlling

67 tructural organization of the keratin matrix feather barbs of the crown.

68 d by temporospatial chromatin looping of the feather beta-keratin gene cluster on chromosome 27.

69 Using a feathered biohybrid aerial robot, we demonstrate how bot

70 ockade of cell proliferation was seen in the feather branching area, along with a downregulation of s

71 duces distinct defects in feather formation: feather branching is transiently and reversibly disrupte

72 unctioning of ecosystems than their furry or feathered brethren, but until recently we had few long-t

73 esult in other feather types such as contour feathers, bristles and down feathers.

74 ic mechanism plays a primary role in hair or feather bud development, we are beginning to discover th

75 esenchymal cells required to begin to form a feather bud.

76 w along the dorsal midline, with rows of new feather buds added sequentially in a spreading wave.

77 blishment of the periodic pattern of hair or feather buds in the developing skin.

78 long arms and broad wings comprised of vaned feathers, but a single specimen (the holotype of Tianyur

79 ons are broadly similar to those of degraded feathers, but concentrations are very low, suggesting th

80 Our results suggest that P. major feathers cannot be used to estimate PFOA and PFOS concen

81 Beneath the feathers, carbonized soft tissues offer a glimpse of pre

82 body, macro-regional specificities (scales, feathers, claws, etc.) established by typical enhancers

83 of stable isotope analysis (SIA) of seabird feathers collected over a 13-year period, in relation to

84 an finch (Erythrura gouldiae), in which head feather colour is genetically determined by a single sex

85 The most recent analysis of the isolated feather considers it to be a primary covert.

86 Parrot feathers contain red, orange, and yellow polyene pigment

87 le differential expression within individual feathers correlates with chromatin looping within the ge

88 the barb rami or rachis suggests that these feathers could have been formed without the full suite a

89 Discovering plumage carotenoids in fossil feathers could provide insight into the ecology of ancie

90 cting for the "Suess Effect," delta(13) C in feathers declined by ~1.5 per mille and delta(15) N by ~

91 Mean feather delta(2)H and delta(34)S values (+/- SD) decline

92 edly converted into precise coadaptations of feather development and carotenoid accommodation as popu

93 oncerns about the phylogenetic placement and feather development of DIP-V-15103, the amber-entombed t

94 n proximity to genes known to be involved in feather development or pigmentation: agouti signaling pr

95 d coordinated increase in the sensitivity of feather development to local carotenoid uptake, indicati

96 and development (including genes involved in feather development), which may be primarily responsible

97 functions beyond redox regulation-including feather development-while enabling significant metabolic

98 Remarkable feathered dinosaur fossils have blurred the lines betwee

99 bodies, likely indicating cohabitation in a feathered dinosaur nest.

100 ility remains that it stems from a different feathered dinosaur that lived in the Solnhofen Archipela

101 In the two decades since the discovery of feathered dinosaurs [1-3], the range of plumage known fr

102 The evolution of flight in feathered dinosaurs and early birds over millions of yea

103 Adaptation of feathered dinosaurs and Mesozoic birds to new ecological

104 tegument and the plumage of fossil birds and feathered dinosaurs have been of melanin-based coloratio

105 id-Cretaceous, accompanying the radiation of feathered dinosaurs including early birds.

106 The famous 'feathered dinosaurs' from the Early Cretaceous of Liaoni

107 new family Deinocrotonidae fed on blood from feathered dinosaurs, non-avialan or avialan excluding cr

108 light on new behavioral attributes for these feathered dinosaurs.

109 the efficacy of managing Psittacine beak and feather disease (PBFD), one of the most common and emerg

110 leterious effects of an outbreak of beak and feather disease virus (BFDV) were revealed on hatch succ

111 to limit transmission and impact of Beak and feather disease virus (BFDV).

112 y evolving single-strand DNA virus, beak and feather diseases virus (BFDV), which infects parrots, ex

113 Eurasian Jay (Garrulus glandarius) feathers display periodic variations in the reflected co

114 he hypothesis that oviraptorosaurs used tail-feather displays in courtship behavior previously predic

115 chanisms for diversity in hindlimb scale and feather distribution.

116 nitrogen dioxide, rodents (nonoccupational), feather/down pillows (protective relative to synthetic b

117 The feather DP is enriched in BMP/TGF-beta signaling molecul

118 anges that drive high expression of MuPKS in feather epithelia.

119 Wnt ligands are mainly expressed in the feather epithelium and pulp.

120 However, it could be a covert or a contour feather, especially since the latter are not well known

121 dicted by developmentally informed models of feather evolution [4-10].

122 The morphology of the complete feather excludes it as a primary, secondary or tail feat

123 Many feathers exhibit a short, slender rachis with alternatin

124 igh concentrations of multiple metals in the feathers exhibit slower exploration behavior but no diff

125 records, the origins and early evolution of feather-feeding behaviors by insects are obscure.

126 This finding demonstrates that feather-feeding behaviors of insects originated at least

127 We found that feathered feet in pigeons result from a partial transfor

128 two-dimensionally preserved rachis-dominated feathers, first recognized in the Jehol Biota.

129 hat distinctive bird characteristics such as feathers, flight, endothermic physiology, unique strateg

130 ous cell-free MDV is produced in specialized feather follicle epithelial (FFE) cells of infected chic

131 us naturally infects epithelial cells of the feather follicle epithelium from where it is shed into t

132 ggest that the Wnt signaling in the proximal feather follicle is fine-tuned to accommodate feather re

133 Here we use the feather follicle to investigate details of this damage r

134 rocesses, we profiled gene expression in the feather follicle using an absolute quantification approa

135 h is derived from DP cells and nourishes the feather follicle, and the ramogenic zone epithelium (Erz

136 f genes that mark specific components of the feather follicle: the dermal papillae (DP) which control

137 protein expression were severely affected in feather follicles wherein MDV is shed, providing importa

138 , the new fossil possesses the longest known feathers for any non-avian dinosaur.

139 those chemotherapeutic agents that disrupted feather formation also downregulated Shh gene expression

140 The travelling wave of feather formation is imposed by expanding expression of

141 In chicken dorsal skin, feather formation starts from the midline; then the morp

142 nic emu skin lacks sufficient cells to enact feather formation, causing failure of tract formation, a

143 in mice and man, induces distinct defects in feather formation: feather branching is transiently and

144 aneously, leading to the hypothesis that the feather-forming wave results from the coupling of local

145 While barb-based feather forms were investigated, feather shafts and vane

146 l impact of urbanisation, and the birds-of-a-feather friendship choice heuristic.

147 The historic fossil feather from the Jurassic Solnhofen has played a pivotal

148 In 1862, a fossil feather from the Solnhofen quarries was described as the

149 model, we isolated bacteria associated with feathers from barn swallows Hirundo rustica from three s

150 Quantitative bio-physical analyses of feathers from birds with different flight characteristic

151 Yet, in vitro reconstitution showed feather germs appear simultaneously, leading to the hypo

152 In flightless birds, feather germs form periodically but without precise hexa

153 erally, leaving a regular hexagonal array of feather germs.

154 )C), nitrogen (delta(15)N), and delta(2)H in feathers grown during the winter.

155 on of the homeostatic mechanism that buffers feather growth in the evolution of new adaptations.

156 otherapeutic reagents and irradiation during feather growth.

157 These findings could imply that feathers had deep evolutionary origins in ancestral arch

158 ranes, insect cuticle, vertebrate epidermis, feathers, hair and adhesive structures known as 'setae'

159 Ectodermal appendages such as feathers, hair, mammary glands, salivary glands, and swe

160 Plants and animals use plumes, barbs, tails, feathers, hairs and fins to aid locomotion.

161 Feathers have a remarkable array of functions - they for

162 However, feathers have been reported from close dinosaurian relat

163 Feathers have been shown to be useful in the biomonitori

164 Feathers have long been regarded as the innovation that

165 Avian feathers have robust growth and regeneration capability.

166 An east-to-west increase of head feather Hg concentrations (1.74-3.48 mug.g(-1)) was acco

167 Feather [Hg] correlated negatively with all of the posth

168 d carrion), analysis of delta(15) N in chick feathers identified a three-guild community structure th

169 ence (LSF) is used to identify fully fledged feathering in the hatchling enantiornithine bird specime

170 n required for the formation of adult flight feathers in a defined spatial and temporal sequence that

171 These feathers in amber reveal a unique ventrally concave and

172 ver amino acids from two specimens of fossil feathers in amber.

173 The spacing of hair in mammals and feathers in birds is one of the most apparent morphologi

174 ds with different flight characteristics and feathers in Burmese amber reveal how multi-dimensional f

175 c expression of Tbx5 is associated with foot feathers in chickens, suggesting similar molecular pathw

176 provides an opportunity to document pristine feathers in direct association with a putative juvenile

177 appears abruptly, near the origin of pinnate feathers in maniraptoran dinosaurs.

178 We describe three-dimensionally preserved feathers in mid-Cretaceous Burmese amber that share macr

179 line the usefulness of archived bird of prey feathers in monitoring spatiotemporal PFAS trends and ur

180 pycnofibres that show diagnostic features of feathers, including non-vaned grouped filaments and bila

181 etailed skin surface, which is surrounded by feather inclusions including a partial rachis-dominated

182 l surfaces of animals and plants (e.g., bird feathers, insect wings, plant leaves, etc.) are superhyd

183 eagues showed such a global event in chicken feathers involves a spreading Ectodysplasin A (EDA) wave

184 Here we show that the feather is most likely an upper major primary covert, ba

185 tly, we have proved that cEbf1 expression in feather is regulated by Shh.

186 al surface of the rachis of these Cretaceous feathers is not homologous with the ventral groove of mo

187 the reflection by the richly colored breast feathers is three-directional and extraordinarily comple

188 reflection by the silvery colored occipital feathers is unidirectional as in a classical multilayer,

189 Feather isotopes from these birds are consistent with th

190 tion distance of each individual by matching feather isotopic values (delta(2)H and delta(13)C) to wi

191 lytic microorganisms through the addition of feather keratin to compost enhanced degradation of PrP(2

192 oductive isolation in natural populations of feather lice on birds.

193 sic ornithischian dinosaur Kulindadromeus as feather-like appendages and alternatively proposes that

194 The presence of feather-like structures suggests that anurognathids, and

195 Hair and feathers likely evolved in the Early Triassic ancestors

196 housands of lobate cilia on the underlapping feathers lock probabilistically with hooked rami of over

197 al traits (for example, antlers, horns, tail feathers, mandibles and dewlaps), show that the giant sp

198 However, feathered maniraptoran dinosaurs (including Mesozoic bir

199 widespread among the entire dinosaur clade; feathers may thus have been present in the earliest dino

200 ish dynamic retinoic acid (RA) landscapes in feather mesenchyme, which modulate GREM1 expression and

201 he relationship between individual blood and feather metal concentrations and three personality trait

202 ation complex on chromosome 25; (2) within a feather, micro-regional specificities are orchestrated b

203 oreover, black iridescent males had distinct feather microbial communities compared to black matte fe

204 d that microbial load tended to be lower and feather microbial diversity was significantly higher in

205 tive PCR and DGGE profiling, we investigated feather microbial load, diversity and community structur

206 r different investment in preening influence feather microbiota community composition and load.

207 structural plumage coloration may affect the feather microbiota remains unanswered.

208 as a factor that may significantly regulate feather microbiota.

209 thus highlights how the development of these feathers might have differed from that of their modern c

210 tatus of three different putative multi-host feather mite species Proctophyllodes macedo Vitzthum, 19

211 ere, we used DNA metabarcoding data of 6,023 feather mites (a total of 2,225 OTU representative seque

212 We show that feather modifications induced by unfamiliar carotenoids

213 preserved and provides the first evidence of feather morphologies and distribution in a short-armed (

214 vered, revealing a diversity of skeletal and feather morphologies observed nowhere else in the Mesozo

215 However, three-dimensional feather morphology and evolutionary patterns remain diff

216 ost-fire evapotranspiration by 410% within a feather moss peatland by burning through the protective

217 in Aves is the alula; a small collection of feathers muscularized near the wrist joint.

218 excludes it as a primary, secondary or tail feather of Archaeopteryx.

219 We analysed feathers of 12 species of Cinclodes to test the isotopic

220 ctive tissues in association with the flight feathers of birds.

221 Furthermore, gene-expression data from feathers of different bird species suggest that parrots

222 topic (delta(15)N, delta(13)C) evidence from feathers of Glaucous-winged Gulls (Larus glaucescens) ha

223 coloration of both the occipital and breast feathers of the bird-of-paradise Lawes' parotia is produ

224 oalkyl substances (PFAS) using archived body feathers of white-tailed eagles (Haliaeetus albicilla) f

225 axa had large wings consisting of pennaceous feathers on the arms and long pennaceous feathers on the

226 ing the spatial arrangement of follicles and feathers on the body, and micrometer-scale features of t

227 ith enigmatic scutellae scale filament (SSF) feathers on the foot, providing direct analogies to the

228 rmed relatives, but potentially lacked vaned feathers on the legs.

229 The new specimen preserves contour feathers on the pedal phalanges together with enigmatic

230 ous feathers on the arms and long pennaceous feathers on the tail very similar to their smaller and l

231 he distribution and morphology of scales and feathers on their feet, yet the genetic and developmenta

232 nanostructure properties of iridescent male feathers or different investment in preening influence f

233 s may have been originally absent from these feathers or the pigments may have degraded during burial

234 le diversity in size, flight adaptations and feather organization(1-4), but exhibit relatively conser

235 Variable feather overlap enables birds to morph their wings, unli

236 gene regulatory network operating in flight feather patterning.

237 ith our results and available data for vaned feathered pennaraptorans, we estimate the potential for

238 t analytes (out of the 15 investigated), the feather PFAA concentrations near the plant are the highe

239 nt to both the genetic architecture of avian feather pigmentation and the evolutionary history and co

240 The yellow and red feather pigmentation of many bird species [1] plays pivo

241 is involved in melanosome transportation and feather pigmentation.

242 Their brilliant, structurally colored feathers play a principal role in mating displays.

243 n amber (Miocene to mid-Cretaceous) and in a feather preserved as a compression fossil (Eocene).

244 ught chemical evidence of carotenoids in six feathers preserved in amber (Miocene to mid-Cretaceous)

245 formation, and instead the entire skin gains feather primordia through a later process.

246 acteristic of birds in general but lays down feather primordia without a wave, akin to the process of

247 These waves, and the precise arrangement of feather primordia, are lost in the flightless emu and os

248 growth, and experimental manipulability, the feather provides a rich model to study growth control, r

249 cle: the dermal papillae (DP) which controls feather regeneration and axis formation, the pulp mesenc

250 eather follicle is fine-tuned to accommodate feather regeneration and axis formation.

251 maintenance of DP marker gene expression and feather regeneration, excessive Wnt signaling delays reg

252 al degradation experiments of resin enclosed feathers, relative to previous thermal degradation exper

253 We show that the patterning of feathers relies on coupled fibroblast growth factor (FGF

254 d as part of the evolutionary lineage toward feathers remains controversial.

255 cal and parsimonious conclusion is that this feather represents a primary covert from the ancient win

256 second introgressed region required for red feathers resides within the epidermal differentiation co

257 upper Yuba Fan to the lower Yuba Fan and the Feather River.

258 The isolated feather's identification has been problematic, and the f

259 y confirmed the diagnostic morphology of the feather's original calamus, but nonetheless challenged t

260 34)S) isotope values from this same 150-year feather set and found additional isotopic evidence suppo

261 barb-based feather forms were investigated, feather shafts and vanes are understudied.

262 nalling modules introduced new dimensions of feather shape diversification.

263 The distally pennaceous portion of these feathers shows differentiated proximal and distal barbul

264 directional Velcro," such that when adjacent feathers slide apart during extension, thousands of loba

265 Our data suggest that flight feather specification involved the co-option of the pre-

266 aline wetlands during winter - inferred from feather stable isotope values - induces residual effects

267 Throat feather stable isotopes indicated that individuals exhib

268 We examined 48 feather stable-hydrogen (delta(2)H) and -sulfur (delta(3

269 Antedon mediterranea is a feather star, endemic to the Mediterranean Sea.

270 the ramogenic zone epithelium (Erz) where a feather starts to branch.

271 Through cyclic regeneration, feather stem cells are molded into different shapes unde

272 transitions between adaptive associations of feather structure and carotenoid uptake to understand ho

273 thousand to -11 per thousand) values in bird feathers suggested a wide pattern of exposure for highly

274 l line 0.TVB*S1, commonly known as the rapid feathering-susceptible (RFS) line, of chickens lacks all

275 Here we describe the feathered tail of a non-avialan theropod preserved in mi

276 The lengthy feathered tail of the new fossil provides insight into t

277 ations were significantly higher in P. major feathers than in blood plasma, but for most other PFAAs,

278 PFAA compounds could be detected in P. major feathers than in blood plasma.

279 With tail feathers that are nearly 30 cm long, roughly 30% the len

280 re preserved with partially damaged dinosaur feathers, the damage of which was probably made by these

281 ime-depth recorders and stable isotopes from feathers to determine differences in foraging behaviour

282 bilistically with hooked rami of overlapping feathers to prevent gaps.

283 spects (and mechanical attributes) of modern feathers to those of stem birds (and their dinosaurian o

284 melanin preservation in fossils ranging from feathers, to mammals, to amphibians.

285 ng the first concrete examples of follicles, feather tracts and apteria in Cretaceous avialans.

286 nalling confers distinct vane shapes between feather tracts.

287 Similar defects are observed in feathers treated with 5-fluorouracil or taxol but not wi

288 show that the reflection properties of both feather types can be quantitatively explained by finite-

289 barb and barbule morphology result in other feather types such as contour feathers, bristles and dow

290 was potentiated by rapid diversification of feather vane shapes.

291 eemingly modern propatagial traits hint that feathering was a significant factor in how basal paravia

292 Given the isolated nature of the fossil feather, we can never know the anatomical and taxonomic

293 With reference to a modern feather, we sought chemical evidence of carotenoids in s

294 However, Hg concentrations in bird feathers were not significantly different between years,

295 Mercury concentrations in winter feathers were positively related to predicted spatial pa

296 ssively redistributes the overlapping flight feathers when the skeleton moves to morph the wing planf

297 However, delta(15) N in chick feathers, which reflected trophic (level) specialization

298 birds over millions of years required flight feathers whose architecture features hierarchical branch

299 stic pigeons have striking variation in foot feathering within a single species, providing a tractabl

300 porting fish eggs attached to their feet and feathers, yet empirical support for this is lacking.