ライフサイエンスコーパス: gametophyte

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

2 the chromosome-doubled cells of the haploid gametophyte.

3 olling the development of the haploid female gametophyte.

4 redundant with that of LORELEI in the female gametophyte.

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

6 transduction of developmental signals in the gametophyte.

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

8 t show reduced transmission through the male gametophyte.

9 metophyte and approximately 9% in the female gametophyte.

10 mete production by a haploid generation, the gametophyte.

11 ription factor genes expressed in the female gametophyte.

12 teguments that cover the nucellus and female gametophyte.

13 fusions and 43 were expressed in the female gametophyte.

14 fic cells of the Arabidopsis thaliana female gametophyte.

15 sed strongly in multiple cells of the female gametophyte.

16 all three proteins are present in the female gametophyte.

17 guidance of pollen tube growth to the female gametophyte.

18 opsis thaliana genes expressed in the female gametophyte.

19 endomycorrhizal fungi extend throughout the gametophyte.

20 nt fraction of transcripts restricted to the gametophyte.

21 nation of generations between sporophyte and gametophyte.

22 ving interaction between the male and female gametophyte.

23 ntact between the pollen tube and the female gametophyte.

24 ty in peroxisomes primarily affects the male gametophyte.

25 ibited reduced transmission through the male gametophyte.

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

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

28 GEX1 function during the development of both gametophytes.

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

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

31 nts through mitotic divisions in the haploid gametophytes.

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

33 ng sporophytes from both isolated and paired gametophytes.

34 itiated after fertilization of fem111 female gametophytes.

35 age of embryogenesis with minimal effects on gametophytes.

36 anslation for development of male and female gametophytes.

37 ntly in flowering plant sporophytes and moss gametophytes.

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

39 g in flowering plants does not fit bryophyte gametophytes.

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

41 ease of culture, and haploid genome make the gametophyte a potentially ideal system for the applicati

42 ed cell proliferation in the integuments and gametophyte abortion.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

73 the parent with a hypomethylated genome, its gametophyte, and both the maternal and paternal genomes

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

75 ant gametophytes must compete with wild-type gametophytes, and arises in part from a reduced pollen t

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

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

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

79 agl61 female gametophytes are affected in the central cell specifical

80 myb98 female gametophytes are affected in two unique features of the

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

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

83 Gametophytes are unisexual, producing either antheridiop

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

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

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

87 s of transporter genes expressed in the male gametophyte at four developmental stages was conducted.

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

89 reproduction, the central cell of the female gametophyte becomes fertilized to produce the endosperm,

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

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

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

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

94 ed that lpat2 caused lethality in the female gametophyte but not the male gametophyte, which had the

95 Transmission frequency through the male gametophyte, but not the female, was lower than expected

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 mous sporophytes are generated directly from gametophytes, bypassing fertilization.

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

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

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

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

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

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

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

106 Mature gametophytes consist of a fleshy protocorm attached to t

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

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

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

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

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

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

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

114 Delta mutants displayed both male and female gametophyte defects.

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

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

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

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

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

120 14b genes have retained similar functions in gametophyte development and female meiosis, but have evo

121 e genes and gene products involved in female gametophyte development and function within a flowering

122 Arabidopsis thaliana with defects in female gametophyte development and function.

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

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

125 develop their unique features during female gametophyte development are not understood.

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

127 on on genes that are expressed during female gametophyte development in angiosperms, and it is not kn

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

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

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

131 and the central cell and once during female gametophyte development when the two polar nuclei fuse t

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

133 1 allele, had defects during male and female gametophyte development, and during early embryogenesis.

134 n, BAM1, BAM2 and BAM3 are required for male gametophyte development, as well as ovule specification

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

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

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

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

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

140 linked to reduced growth and deficiencies in gametophyte development.

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

142 sary for cell cycle progression during early gametophyte development.

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

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

145 restricts the proliferative phase of female gametophyte development.

146 thers support meiosis and subsequent haploid gametophyte development.

147 ansporters and potential receptors with male gametophyte development.

148 tures within the synergid cell during female gametophyte development.

149 entially or specifically expressed in female gametophyte development.

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

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

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

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

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

155 complex interactions between sporophyte and gametophyte during ovule development.

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

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

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

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

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

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

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

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

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

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

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

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

173 Diplospory (unreduced female gametophyte formation) and autonomous development (embry

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

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

176 DNA mutations reveal a role for SEC8 in male gametophyte function.

177 GPI anchor addition also rescued lre female gametophyte function.

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

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

180 and transition and the change from a haploid gametophyte generation-dominant life cycle in bryophytes

181 to differentiate gas exchange tissues in the gametophyte generation.

182 datasets, 225 genes are identified as female gametophyte genes, likely a lower limit as stringent cri

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

184 Female gametophytes grow from their tips and compete over hundr

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

186 Haploid moss gametophytes harbor distinct stem cell types, including

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

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

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

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

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

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

193 We cultured gametophytes in the laboratory and quantified the relati

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

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

196 The female gametophyte induces rupture of the penetrating pollen tu

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

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

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

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

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

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

203 The sexual dimorphism of the Rhynie chert gametophytes is inconsistent with theoretical ideas abou

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

205 Gametophytes lacking both DRP2A and DRP2B were inviable,

206 There is no evidence that gametophytes later become hermaphroditic.

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

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

209 lants that overexpress CTF7 exhibited female gametophyte lethality.

210 nsmission defect is only evident when mutant gametophytes must compete with wild-type gametophytes, a

211 We identified a female gametophyte mutant in Arabidopsis thaliana, fem111, that

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

213 We have identified nine female gametophyte mutants in Arabidopsis (Arabidopsis thaliana

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

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

216 The male gametophyte of Arabidopsis thaliana, which is recalcitra

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

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

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

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

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

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

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

224 Here we report that gametophytes of P. vittata hyperaccumulate As in a simil

225 ll fate determination in the endosporic male gametophytes of the fern, Marsilea vestita.

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

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

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

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

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

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

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

233 gesting that genes expressed from the female gametophyte or the maternal genome play a major role in

234 Although male gametophyte performance primarily involves cellular proc

235 led information about the development of the gametophyte phase and the alternation of generations of

236 Here, we trace the development of the gametophyte phase of Aglaophyton, an early land plant wi

237 The gametophyte phase of early land plants can now be consid

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

239 The synergid cells of the female gametophyte play a role in many steps of the angiosperm

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

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

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

243 Furthermore, female gametophytes preferentially supported sporophytes with h

244 for sporophytic development controlling male gametophyte production.

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

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

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

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

249 CrANT knockdown gametophytes responded weakly to sugar for apogamy promo

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

251 and mutations in this gene affect the female gametophyte specifically.

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

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

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

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

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

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

258 epends on the proper development of the male gametophyte, successful pollen germination, tube growth,

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

260 of an arsenate reductase gene (PvACR2) from gametophytes that can suppress the arsenate sensitivity

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

262 s, shows alternation of generations, but its gametophyte, the haploid phase of the life cycle, is dom

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

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

265 In fem111 female gametophytes, the central cell's nucleolus and vacuole f

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

267 tive (119 genes), plant pigment (121 genes), gametophyte (three genes), and alternate (138 genes) phe

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

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

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

271 group (PcG) proteins functions in the female gametophyte to control the initiation of seed developmen

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

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

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

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

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

277 LPAT2 promoter could rescue the lpat2 female gametophytes to allow fertilization to occur but not to

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

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

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

281 erms, and it is not known whether the female gametophyte transcriptome contains a major set of genes

282 embryo development and important for female gametophyte transmission.

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

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

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

286 Like the sporophyte, the gametophyte was found to reduce arsenate [As(V)] to arse

287 double-mutant combination through the female gametophyte was normal.

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

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

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

291 al arsenate reductase activity in P. vittata gametophytes was found to be constitutive and unaffected

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

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

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

295 Steady-state levels of PvACR2 expression in gametophytes were found to be similar in the absence and

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 y in the female gametophyte but not the male gametophyte, which had the redundant LPAT3.

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