ライフサイエンスコーパス: gametophyte

1 ules (because of a moderate defect in female gametophytes).

2 ntact between the pollen tube and the female gametophyte.

3 ty in peroxisomes primarily affects the male gametophyte.

4 ibited reduced transmission through the male gametophyte.

5 in the absence of heat stress in the female gametophyte.

6 bute to the total RPL10 activity in the male gametophyte.

7 olling the development of the haploid female gametophyte.

8 redundant with that of LORELEI in the female gametophyte.

9 the cell wall at the entrance to the female gametophyte.

10 n reception of the pollen tube by the female gametophyte.

11 transduction of developmental signals in the gametophyte.

12 went abortion due to defect(s) in the female gametophyte.

13 t show reduced transmission through the male gametophyte.

14 metophyte and approximately 9% in the female gametophyte.

15 mete production by a haploid generation, the gametophyte.

16 ription factor genes expressed in the female gametophyte.

17 teguments that cover the nucellus and female gametophyte.

18 fusions and 43 were expressed in the female gametophyte.

19 fic cells of the Arabidopsis thaliana female gametophyte.

20 sed strongly in multiple cells of the female gametophyte.

21 cts in splicing than either embryo or female gametophyte.

22 nversion of the sporophyte generation into a gametophyte.

23 the chromosome-doubled cells of the haploid gametophyte.

24 ving interaction between the male and female gametophyte.

25 ntly in flowering plant sporophytes and moss gametophytes.

26 tion, leaf shape, and shoot tropisms in moss gametophytes.

27 GEX1 function during the development of both gametophytes.

28 changes in the sizes of both male and female gametophytes.

29 but mostly overcome by pseudogamy of female gametophytes.

30 nts through mitotic divisions in the haploid gametophytes.

31 phytes, but also between the male and female gametophytes.

32 infertile1 (dif1) ovules, which lack female gametophytes.

33 methylation levels measured in both haploid gametophytes.

34 s of Rhizobiales are detected throughout the gametophytes.

35 g in flowering plants does not fit bryophyte gametophytes.

36 pollen tube reception defect in lre-7 female gametophytes.

37 ng sporophytes from both isolated and paired gametophytes.

38 e-rich chemoattractants to target the female gametophyte(1,2).

39 espread haploid expression of genes in plant gametophytes [3].

40 ed cell proliferation in the integuments and gametophyte abortion.

41 ed functional traits of fern sporophytes and gametophytes across a broad phylogenetic sampling on the

42 ndicate that factors derived from the female gametophyte activate a subset of the paternal genome of

43 RPL27a levels in both the sporophyte and gametophyte affect female gametogenesis, with different

44 The fate of male gametophytes after pollen reaches stigmas links pollinat

45 ssential for the proper function of the male gametophyte, although the synthesis of histidine, lysine

46 y 10% of the genes are expressed in the male gametophyte and approximately 9% in the female gametophy

47 olecular processes functioning in the female gametophyte and can be used as starting points to dissec

48 NA accumulation is initiated in the maternal gametophyte and continues during seed development.

49 partners during the initially heterotrophic gametophyte and early sporophyte stages of the lifecycle

50 roper levels of CTF7 are critical for female gametophyte and embryo development but not for the estab

51 t that MED30 is also essential for both male gametophyte and embryo development in the model plant Ar

52 the mechanism by which AtHDA7 affects female gametophyte and embryo development.

53 iously demonstrated to be involved in female gametophyte and embryo development.

54 nergid, egg, and central cells of the female gametophyte and in the zygote and proliferating endosper

55 tPME48 is specifically expressed in the male gametophyte and is the second most expressed PME in dry

56 were bryophyte-like and possessed a dominant gametophyte and later the sporophyte rose to dominance.

57 y is prevalent among sporophytes of a female gametophyte and male genotypes exhibit significant skew

58 to bear and to nurture the embryo sac/female gametophyte and pollen, in which the egg and sperm cells

59 the role of mitochondrial ROS homeostasis in gametophyte and seed development and sheds new light on

60 e altered expression of key genes related to gametophyte and seed development could be explained base

61 x modified the regulatory pathways in female gametophyte and seed development.

62 te the development of lateral organs in both gametophyte and sporophyte shoots by repressing cell div

63 tion functions were co-opted early into both gametophyte and sporophyte, with a specific rooting func

64 results in aberrant development of the male gametophyte and sporophyte.

65 ip between pollen tube arrival at the female gametophyte and synergid cell death in Arabidopsis.

66 n two multicellular generations, the haploid gametophyte and the diploid sporophyte [1].

67 re abundant in the photosynthetic vegetative gametophyte and the reproductive spore.

68 F1 is required for successful development of gametophytes and acquisition of fertilisation competency

69 racellular cell-wall matrix surrounding male gametophytes and acts as a natural protector of pollen g

70 cient to unmask a variety of stored mRNAs in gametophytes and arrest development.

71 st single-base methylome profiles of haploid gametophytes and diploid sporophytes of a multicellular

72 ansmitting tract and stigma, male and female gametophytes and gametes.

73 genes for reduced expression in myb98 female gametophytes and identified 16 such genes.

74 DUO1 is required for cell division in male gametophytes and is a target of microRNA 159 (miR159) in

75 ty is required for guided growth of the male gametophytes and pollen tube-ovule interaction.

76 med on multiple tissues and growth stages of gametophytes and sporophytes.

77 an-related genes was found primarily between gametophytes and tetrasporophytes, but also between the

78 the development of the gynoecium and female gametophyte, and organogenesis and phyllotaxy in the sho

79 orophyte production from isolated and paired gametophytes, and examined associations between breeding

80 les exhibited reduced transmission in female gametophytes, and heterozygous genotypes triggered highe

81 erns, provides a protective barrier for male gametophytes, and serves as a mediator of strong and spe

82 The synergid cells within the female gametophyte are essential for reproduction in angiosperm

83 agl61 female gametophytes are affected in the central cell specifical

84 owering plants, in Trimenia, multiple female gametophytes are initiated at the base (chalazal end) of

85 Importantly, it seems that multiple female gametophytes are occasionally or frequently initiated in

86 monstrate that ssSPTs are essential for male gametophytes, are important for FB1 sensitivity, and lim

87 ring fertilization and that AMC functions in gametophytes as a peroxin essential for protein import i

88 s were employed to deplete spermidine in the gametophyte at different stages of gametogenesis.

89 ntia polymorpha, a bryophyte, which produces gametophyte axes with nonphotosynthetic scalelike latera

90 n floral meristems differentiate into female gametophyte-bearing organs termed carpels.

91 ical for pollen tube reception by the female gametophyte before fertilization and the initiation of s

92 d demonstrates the importance of considering gametophyte biology when studying evolutionary processes

93 the production of sex organs at the tips of gametophyte branches, the number of OBs in the top gamet

94 phytic thalli produced not only each type of gametophyte but also diploid thalli carrying the mt(-) a

95 after the pollen tube arrives at the female gametophyte but before pollen tube discharge.

96 mbryo production from in vitro-cultured male gametophytes, but this technique remains poorly understo

97 The pollen tube enters the female gametophyte by growing into the synergid cell that under

98 t the approach and penetration of the female gametophyte by late-arriving pollen tubes, thus averting

99 ditions to prevent the penetration of female gametophytes by multiple pollen tubes in Arabidopsis.

100 mous sporophytes are generated directly from gametophytes, bypassing fertilization.

101 pes but double mutants could be recovered as gametophytes carrying mutant copies of both DRP2A and DR

102 are characterized by pollen tubes (PTs; male gametophytes) carrying two immobile sperm cells that gro

103 ng during differentiation of the four female gametophyte cell types.

104 First, cultured gametophyte cells may be regenerated into haploid plants

105 of various gene constructs transformed into gametophyte cells revealed that all OBs were linked to t

106 specifying accessory cells, whereas in both gametophytes, companion cells contribute non-cell-autono

107 The intensification of pollen tube (male gametophyte) competition and enhanced maternal selection

108 plants, or gymnosperms, is a reduced female gametophyte, comprising just seven cells of four differe

109 An Arabidopsis pollen grain (male gametophyte) consists of three cells: the vegetative cel

110 ALF19 at the interface of pollen tube-female gametophyte contact, thereby deregulating BUPS-ANXUR sig

111 The female gametophyte contains two synergid cells that play a role

112 In flowering plants, the female gametophyte controls pollen tube reception immediately b

113 The one-cell-layer gametophyte could be observed easily with confocal micro

114 lants demonstrated that both male and female gametophytes could transmit the dgat1 plip1 double-mutan

115 unit of C invested into fungi) of liverwort gametophytes declines, but increases in the sporophytes

116 ockdown lines of DGK2 and DGK4 confirmed the gametophyte defect and also revealed defective leaf and

117 ted 1:1 heterozygous:wild type, indicating a gametophyte defect.

118 When gametophyte defects were bypassed by specific pollen com

119 Delta mutants displayed both male and female gametophyte defects.

120 ow that patterning of the Arabidopsis female gametophyte depends on an asymmetric distribution of the

121 eover, this competition among pollen grains (gametophytes) depends, in part, on their extensive haplo

122 m physical stresses and consists of an inner gametophyte-derived intine layer and a sporophyte-derive

123 In angiosperms, male and female gametophytes develop within the sporophyte.

124 ns have partially redundant functions during gametophyte development and are required for the mainten

125 y3 (RPD3) superfamily, is crucial for female gametophyte development and embryogenesis in Arabidopsis

126 14b genes have retained similar functions in gametophyte development and female meiosis, but have evo

127 demonstrate that AtSPP is required for male gametophyte development and pollen maturation in Arabido

128 indicate that it functions as a regulator of gametophyte development and the gametophyte-sporophyte t

129 The pattern of female gametophyte development found in Trimenia is rare but by

130 To identify genes related to female gametophyte development in apomictic ovaries of buffelgr

131 these genes are expressed throughout female gametophyte development in apomictic ovaries.

132 which we have found plays a critical role in gametophyte development in Arabidopsis thaliana.

133 (1) the delta-subunit is essential for male gametophyte development in Arabidopsis, (2) a disturbanc

134 at performs functions during male and female gametophyte development, and during early embryogenesis.

135 1 allele, had defects during male and female gametophyte development, and during early embryogenesis.

136 PK and RNase domains are required for normal gametophyte development, but bZIP60 is not.

137 ing Athemn1 mutant alleles showed defects in gametophyte development, including nonviable pollen and

138 se two genes is necessary and sufficient for gametophyte development, indicating that they are redund

139 and both shared expressed genes involved in gametophyte development, suggesting that the enlarging A

140 During male gametophyte development, the asymmetric mitotic division

141 iosis, at pollen mitosis I and during female gametophyte development.

142 linked to reduced growth and deficiencies in gametophyte development.

143 l of regulation for this transporter in male gametophyte development.

144 sary for cell cycle progression during early gametophyte development.

145 ited a severely reduced growth rate in early gametophyte development.

146 restricts the proliferative phase of female gametophyte development.

147 t of lipids, hormone-mediated signaling, and gametophyte development.

148 ique mRNA 3'-end formation regulation during gametophyte development.

149 t as anther somatic cells mature and haploid gametophytes differentiate into pollen.

150 issues, the young transcriptomes of the male gametophyte displayed greater complexity and diversity,

151 Although most lre-5 female gametophytes do not allow pollen tube reception, in thos

152 utant cannot be transmitted through the male gametophyte due to a defect in pollen tube growth.

153 ng plants depends on the fitness of the male gametophyte during fertilization.

154 complex interactions between sporophyte and gametophyte during ovule development.

155 ransiently expressed in both male and female gametophytes during fertilization and that AMC functions

156 etophytes that deliver sperm cells to female gametophytes during sexual reproduction of higher plants

157 eastern North America and study the role of gametophyte ecology in the determination of hybridizatio

158 Thus, the details of male gametophyte ecology should shape sporophyte reproductive

159 menia, we posit that prefertilization female gametophyte (egg) competition within individual ovules i

160 les, we found a remarkable pattern of female gametophyte (egg-producing structure) development that s

161 n precise pollen tube guidance to the female gametophyte (embryo sac) and its rupture to release sper

162 Female gametophytes (embryo sacs) in higher plants are embedded

163 een reported that FERONIA generates a female gametophyte environment that is required for sperm relea

164 the model that a passage through the female gametophyte establishes monoalleleic expression of LRE i

165 Here we report that the female gametophyte-expressed glycosylphosphatidylinositol-ancho

166 (FER) receptor kinase mutants, whose female gametophytes fail to induce pollen tube rupture, to deci

167 During female gametophyte (FG) development, a single archesporial cell

168 ries two nonmotile sperm cells to the female gametophyte (FG) or embryo sac [6] during a long assiste

169 any of which become integrated by the female gametophyte (FG).

170 hromatographically from late-stage LP female gametophytes (FGs), and then characterized structurally

171 ccessful sperm cell delivery into the female gametophyte followed by migration, recognition and fusio

172 ransported inside pollen tubes to the female gametophyte for fertilization.

173 in the pistil to deliver them to the female gametophyte for fertilization.

174 sis reproductive function, as it facilitates gametophyte formation and double fertilization, a develo

175 In-vitro reciprocal crossing of Mar Brava gametophytes from both species revealed that although it

176 ize the tetrasporophytes and male and female gametophytes from Chondrus individuals isolated from the

177 alyses of insertional mutants affecting male gametophyte function, and should allow detailed gene exp

178 GPI anchor addition also rescued lre female gametophyte function.

179 ing in vegetative tissue and for normal male gametophyte function.

180 han 200 genes have been associated with male gametophyte functions in this species.

181 In conclusion, we provide insight into male gametophyte functions of the most basal angiosperm and e

182 o a deeper understanding of the evolution of gametophyte functions, we generated RNA sequencing data

183 Our results suggest that intrasexual gametophyte/gamete competition may play a role in determ

184 ks the transition from the sporophyte to the gametophyte generation in the life cycle of flowering pl

185 to differentiate gas exchange tissues in the gametophyte generation.

186 apping population of 288 recombinant haploid gametophytes, genotyped at 121 polymorphic AFLP loci, th

187 s the main exocyst EXO70 isoform in the male gametophyte, governing the conventional secretory functi

188 Female gametophytes grow from their tips and compete over hundr

189 In bryophytes, haploid gametophytes grow via clonal propagation and produce mil

190 To reach the female gametophyte, growing pollen tubes must penetrate differe

191 Haploid moss gametophytes harbor distinct stem cell types, including

192 d post-fertilization functions of the female gametophyte have been identified and, recently, the morp

193 ig1 mutant female gametophytes have a prolonged phase of free nuclear divi

194 occur among multiple sporophytes of a female gametophyte; however, its occurrence and extent is unkno

195 megagametogenesis are normal and the female gametophyte identity is correctly established.

196 s in ferns, and the branching pattern of the gametophyte in mosses.

197 Although the critical role of the female gametophyte in pollen tube reception has been demonstrat

198 c expression or significant up-regulation in gametophyte in response to dehydration.

199 f the central cell in the Arabidopsis female gametophyte in the unfertilized ovule, leading to multin

200 hytic reproductive structures and associated gametophytes in Arabidopsis.

201 We cultured gametophytes in the laboratory and quantified the relati

202 uberance formed by the pollen grain, or male gametophyte, in flowering plants.

203 nts lacking either PpSMF1 or PpSCRM1 develop gametophytes indistinguishable from wild-type plants but

204 The female gametophyte induces rupture of the penetrating pollen tu

205 The leafy gametophyte inhabits the intertidal zone that undergoes

206 their immotile sperm to fertilize the female gametophytes inside ovules.

207 at the spatially confined pollen tube-female gametophyte interface.

208 In Arabidopsis thaliana, the female gametophyte is a highly polarized structure consisting o

209 At maturity, the female gametophyte is four-celled, four-nucleate and will produ

210 We propose that the totipotency of the male gametophyte is kept in check by an HDAC-dependent mechan

211 ion for sperm cell release inside the female gametophyte is puzzling.

212 rospore embryogenesis system, where the male gametophyte is reprogrammed in vitro to form haploid emb

213 osperms, pollen tube reception by the female gametophyte is required for sperm release and double fer

214 TSA treatment of male gametophytes is associated with the hyperacetylation of

215 unit of flowering plants, the haploid female gametophyte, is highly reduced relative to other land pl

216 Gametophytes lacking both DRP2A and DRP2B were inviable,

217 omozygous mutant plants from strong maternal gametophyte lethal alleles, which is not possible via co

218 we found that dgk2-1/- dgk4-1/- plants were gametophyte lethal, although parental single homozygous

219 nt of the two Arabidopsis RanGAP homologs is gametophyte lethal.

220 lants that overexpress CTF7 exhibited female gametophyte lethality.

221 rophytes (mainly lambda-carrageenan) and the gametophytes (mainly kappa/iota-carrageenans).

222 precise nuclei differentiation necessary for gametophyte maturation and fertilisation.

223 cribe the characterization of a novel female gametophyte mutant, eostre, which affects establishment

224 evelopment and radiated independently in the gametophyte (n) and sporophyte (2n) stages of the life c

225 e cycle, alternating between male and female gametophytes (n) and tetrasporophytes (2n).

226 psis thaliana and rhizoid development in the gametophytes (n) of the bryophyte Physcomitrella patens.

227 at the bryophyte life cycle (with a dominant gametophyte nurturing an unbranched sporophyte) may not

228 The male gametophyte of Arabidopsis thaliana, which is recalcitra

229 cious translation of transcripts in the male gametophyte of M. vestita.

230 mechanism of B chromosome drive in the male gametophyte of rye (Secale cereale).

231 pment of multicellular axillary hairs on the gametophyte of the moss Physcomitrella patens.

232 s evolved, which genes occur de novo in male gametophytes of angiosperms, and to which extent PT func

233 ring the development of both female and male gametophytes of Arabidopsis.

234 y with trichostatin A (TSA) in cultured male gametophytes of Brassica napus leads to a large increase

235 Minor defects were observed in female gametophytes of ctf7(+/-) plants, and plants that overex

236 n cell fate determination in developing male gametophytes of M. vestita.

237 s of asymmetrical hybridization, we cultured gametophytes of the parental species and evaluated criti

238 Double-mutant female gametophytes of xpo1a-3/+; xpo1b-1/xpo1b-1 plants failed

239 Double-mutant female gametophytes of xpo1a-3/xpo1a-3; xpo1b-1/+ plants had no

240 e pollen tube reception defect in lre female gametophytes, only if they expressed FERONIA.

241 le for anchor biosynthesis or attachment are gametophyte or embryo lethal.

242 novel type of embryo sac (angiosperm female gametophyte or haploid egg-producing structure) in Ambor

243 Interestingly, the haploid male gametophyte or pollen in Arabidopsis, on the other hand,

244 In flowering plants, the haploid male gametophyte or pollen tube (PT) [5] carries two nonmotil

245 Although male gametophyte performance primarily involves cellular proc

246 observed a heavily male-biased sex ratio in gametophyte plants (ramets) and in multilocus microsatel

247 The central cell of the female gametophyte plays a role in pollen tube guidance and in

248 on compatible communication between the male gametophyte (pollen tube) and the maternal tissues of th

249 o determine the SI phenotype of its haploid (gametophyte) pollen.

250 le fern gametophytes, turning nearby asexual gametophytes precociously male.

251 Furthermore, female gametophytes preferentially supported sporophytes with h

252 In P. vittata gametophytes, PvPht1;3 transcript levels increased in re

253 arise in one of the mitotic divisions of the gametophyte, rather than at meiosis.

254 t peroxisomes play an unexpected key role in gametophyte recognition and implicate a diffusible signa

255 e synergid cell membrane by which the female gametophyte recognizes the arrival of a compatible polle

256 ral organs from meristems of sporophytes and gametophytes, respectively.

257 CrANT knockdown gametophytes responded weakly to sugar for apogamy promo

258 hen an amc pollen tube reaches an amc female gametophyte, resulting in pollen-tube overgrowth and com

259 oxidative related genes), many of which show gametophyte-specific expression or significant up-regula

260 within individual ovules in addition to male gametophyte (sperm) competition and maternal mate choice

261 In untreated gametophytes, spermidine made in the jacket cells moves

262 iparentally inherited genetic factors (e.g., gametophyte-sporophyte interactions in plants or cytopla

263 regulator of gametophyte development and the gametophyte-sporophyte transition.

264 This quiescence represents a hallmark of the gametophyte-sporophyte transition.

265 ch divide and differentiate into specialised gametophyte structures.

266 hts into the nature and implications of male gametophyte success.

267 te a diffusible signal emanating from either gametophyte that is required for pollen-tube discharge.

268 g plants relies on the production of haploid gametophytes that consist of germline and supporting cel

269 Pollen grains are the male gametophytes that deliver sperm cells to female gametoph

270 The haploid male gametophyte, the pollen grain, is a terminally different

271 Upon arrival at the female gametophyte, the pollen tube stops growing and releases

272 t have germlines and form their gametes from gametophytes, there is now evidence that reproductive Ar

273 ll size and a higher frequency of noncordate gametophytes, they showed greater functional diversity a

274 phyte branches, the number of OBs in the top gametophyte tissue decreased concomitant with increases

275 Phosphorus concentration in P. vittata gametophyte tissue grown on phytate was equivalent to pl

276 the neutral lipids in OBs isolated from the gametophyte to be largely steryl esters and triacylglyce

277 be, which delivers sperm cells to the female gametophyte to effect double fertilization.

278 oxygen species at the entrance to the female gametophyte to induce pollen tube rupture and sperm rele

279 ifecycle O. vulgatum, from mycoheterotrophic gametophyte to mutualistic aboveground sporophyte.

280 rom the recruitment of regulatory genes from gametophyte to sporophyte.

281 rentiation initiates the transition from the gametophyte to the sporophyte generation and, upon matur

282 d the evolution of land plants from rootless gametophytes to rooted sporophytes during the mid-Palaeo

283 se taxa, we found that the transition from a gametophyte- to a sporophyte-dominated life cycle requir

284 plant traits, such as polarized cell growth, gametophyte-to-sporophyte transitions, and sperm-to-poll

285 embryo development and important for female gametophyte transmission.

286 ones released by sexually mature female fern gametophytes, turning nearby asexual gametophytes precoc

287 The angiosperm female gametophyte typically consists of one egg cell, two syne

288 of the two synergid cells within the female gametophyte undergoes cell death prior to fertilization.

289 dominance, transition to flowering, and male gametophyte viability.

290 inesins, postmeiotic development of the male gametophyte was severely inhibited.

291 Expression of the PvPht1 loci in P. vittata gametophytes was also examined in response to phosphate

292 Development in spermidine-depleted gametophytes was arrested before the completion of the l

293 In both cases the development of female gametophytes was impaired.

294 g the gene regulatory networks of the female gametophyte, we have identified a large collection of ge

295 Approximately 50% of the female gametophytes were arrested in early development, before

296 stics, in which putatively stable transgenic gametophytes were recovered.

297 roduction of hydroxyl radicals in the female gametophyte, which causes pollen tube rupture and sperm

298 Meiospores developed into apparently fertile gametophytes, which gave rise to F1 sporophytes that rea

299 , pollen tube reception fails in most female gametophytes, which thus remain unfertilized.

300 Here, the successful female gametophyte will mate with a pollen tube to produce an e