ライフサイエンスコーパス: allopolyploid

1 opolyploids) or interspecific hybridization (allopolyploids).

2 ci inherited from one of the ancestors of an allopolyploid.

3 the direction was reversed in the synthetic allopolyploid.

4 biased accumulation of seed proteins in the allopolyploid.

5 f transcriptional neofunctionalization in an allopolyploid.

6 of interaction among duplicated genes in the allopolyploid.

7 one progenitor of an interspecific hybrid or allopolyploid.

8 lutionary processes that shaped this complex allopolyploid.

9 nant and recessive subgenomes in the natural allopolyploid.

10 ely not the reason for enhanced vigor in the allopolyploid.

11 ous chromosomes was reported in many nascent allopolyploids.

12 pairing were more frequent in the synthetic allopolyploids.

13 in the formation of new invasive hybrids and allopolyploids.

14 block all homoeologous chromosome pairing in allopolyploids.

15 on changes within and between species and in allopolyploids.

16 responses in Arabidopsis-related species and allopolyploids.

17 s from diploid parental genomes may occur in allopolyploids.

18 imited studies on autopolyploids compared to allopolyploids.

19 process referred to as the diploidization of allopolyploids.

20 ific RNA-mediated DNA methylation in natural allopolyploids.

21 y stages of fiber cell development in cotton allopolyploids.

22 biased gene loss, in contrast to many other allopolyploids.

23 ation can be studied using newly synthesized allopolyploids.

24 can be used to study molecular evolution of allopolyploids.

25 permit the restoration of fertility in some allopolyploids.

26 ecent examples of rapid genomic evolution in allopolyploids.

27 d industrial organisms are ancient or recent allopolyploids.

28 ersity, and helping the establishment of neo-allopolyploids.

29 ases are predominantly novel, or evolved, in allopolyploids.

30 olog expression bias, are widely observed in allopolyploids.

31 lasts and mitochondria and between auto- and allopolyploids.

32 own-regulated ELD were only found in natural allopolyploids.

33 across generations in Arabidopsis auto- and allopolyploids.

34 duplicated genes and alleles in hybrids and allopolyploids.

35 ther donor has been hypothesized to occur in allopolyploids.

36 egulatory changes in naturally formed recent allopolyploids.

37 ons, underlying epigenetic dynamics in young allopolyploids.

38 zing the expression of thousands of genes in allopolyploids.

39 eed abortion in interspecific hybrids or neo-allopolyploids.

40 s (Oryza), about one half of the species are allopolyploids.

41 ariation of miRNA genes and their targets in allopolyploids.

42 suggest that meiosis in the recently evolved allopolyploid A. suecica is essentially diploid like, wi

43 The results indicate that in most allopolyploid accessions both homeologous nrDNA repeats

44 Allopolyploid accessions from either diploid genomic gro

45 stigation of 50 resynthesized Brassica napus allopolyploids across generations S(0:1) to S(5:6) and i

46 ong cotton species, 17 diverse accessions of allopolyploid (AD-genome) and diploid (A- and D-genome)

47 nitor (Gossypium raimondii, D-genome) of the allopolyploid (AD-genome) cottons, G. hirsutum and G. ba

48 nance is an important phenomenon observed in allopolyploids after whole genome duplication, in which

49 usive homologous pairing in well-established allopolyploids, an evolutionary process referred to as t

50 es of a worldwide genotype collection of six allopolyploid and five diploid wild strawberry (Fragaria

51 r degree of proteomic similarity between the allopolyploid and its D-genome donor than its A-genome d

52 lity and fertility in a recently established allopolyploid and provides an Arabidopsis system to deci

53 terns of DNA methylation in a recent natural allopolyploid and shows that novel methylation variants

54 ossovers underlie genomic instability in neo-allopolyploids and are more distally biased than homolog

55 the economic and environmental importance of allopolyploids and other species with highly duplicated

56 The geographical distributions of the allopolyploids and parents are also complex, with allote

57 between transposable element mobilisation in allopolyploids and quantitative imbalances in parental t

58 gly impaired during the first meiosis of neo-allopolyploids and requires subsequent adaptation.

59 ologous chromosome pairing exists in nascent allopolyploids and serves as the first layer that would

60 partitioning of expression than the natural allopolyploids and the in vitro "hybrids" of diploid par

61 the preferential pairing factor) typical of allopolyploids and the other specifying the degree of do

62 redundant gene copies between resynthesized allopolyploids and their diploid parents.

63 uclear and organellar genome copy numbers in allopolyploids and their diploid progenitors in both whe

64 tected on 36 of the 38 chromosomes of the S5 allopolyploids and were not random across the genome.

65 DNA within genomes and between subgenomes in allopolyploids (and our hypothesis passes "the onion tes

66 on hybrid, intermediate in the resynthesized allopolyploid, and are repatterned differently between t

67 Epigenetic profiling in diploid, allopolyploid, and domesticated cotton shows that despit

68 f heterozygosity from diploid progenitors in allopolyploids, and by generation of transgressive pheno

69 nt observations of the common patterns among allopolyploid angiosperm lineages, underlying genomic an

70 isplay hybrid vigor, we compared the natural allopolyploid Arabidopsis suecica to its progenitor spec

71 tural evolution of the genome of the natural allopolyploid Arabidopsis suecica, compared with its pre

72 Allopolyploids are organisms possessing more than two co

73 nes in closely related species and recurrent allopolyploids are poorly understood.

74 ed allopolyploids are well adapted, man-made allopolyploids are typically unstable, displaying homeot

75 ated species and in interspecific hybrids or allopolyploids are unknown.

76 Whereas wild and cultivated allopolyploids are well adapted, man-made allopolyploids

77 tarch molecules, is at the same level in the allopolyploid as in the maternal progenitor A. thaliana

78 varying light conditions and found that the allopolyploid assimilates more CO2 per unit chlorophyll

79 In contrast to allopolyploids, autopolyploid A. thaliana showed the sam

80 ssion dominance occurs between subgenomes of allopolyploid B. juncea, in which differentially express

81 ification of all homoeologous chromosomes of allopolyploid B. napus by using robust molecular cytogen

82 heterosis during early flower development in allopolyploid B. napus.

83 We assembled an allopolyploid Brassica juncea genome by shotgun and sing

84 /spring oilseed, tuberous, and leafy) of the allopolyploid Brassica napus, a species that contains th

85 In the allopolyploid Brassica napus, we obtained a petal-closed

86 ioning of expression was frequent in natural allopolyploids, but F(1) hybrids and S(1) allopolyploids

87 ave been observed in both autopolyploids and allopolyploids, but the effects of polyploidy on proteom

88 An allopolyploid can be viewed as an immortalized hybrid, w

89 tions of key regulatory genes in hybrids and allopolyploids can alter complex regulatory networks of

90 matic aneuploidy, especially in higher level allopolyploids, can act as an evolutionary relevant mech

91 nt is inconsistent with recent data from the allopolyploid Capsella bursa-pastoris.

92 at early meiosis is altered in synthetic neo-allopolyploids compared with evolved A. suecica, with a

93 ix different races in the Glycine tomentella allopolyploid complex.

94 model the seed trichomes ("cotton fiber") of allopolyploid (containing "A" and "D" genomes) cotton (G

95 In allopolyploids, correct chromosome segregation requires

96 terize the evolution of homoeologous loci in allopolyploid cotton (Gossypium hirsutum) and in species

97 These libraries were derived from allopolyploid cotton (Gossypium hirsutum; A(T) and D(T)

98 e pairs in 24 tissues in naturally occurring allopolyploid cotton (Gossypium L.), a synthetic allopol

99 during divergence of the diploid parents of allopolyploid cotton and following polyploid formation.

100 will lead to the reference-grade assembly of allopolyploid cotton and serve as a general strategy for

101 sults indicate that most duplicated genes in allopolyploid cotton evolve independently of each other

102 us A(T) and D(T) chromosomes constitutive of allopolyploid cotton genome, with an average of 64 dupli

103 The allopolyploid cotton species also provide a model system

104 he two coresident genomes (AT and DT) of the allopolyploid cotton species, Gossypium hirsutum.

105 e evolution and diversification for all five allopolyploid cotton species, including economically imp

106 cific hybrid F(1), and synthetic and natural allopolyploid cotton using RNA-Seq reads from leaf trans

107 Of the two cultivated species of allopolyploid cotton, Gossypium barbadense produces extr

108 gene expression and network relationships in allopolyploid cotton, which has two co-resident genomes

109 s for each of the two constituent genomes of allopolyploid cotton.

110 ng species and the two coresident genomes of allopolyploid cotton.

111 Overall, our work suggests that allopolyploid cottons acquired a wide range of stress re

112 polyploids than in F(1) hybrid and synthetic allopolyploid cottons.

113 Genomic interactions in allopolyploids create expression variation of homoeologo

114 Combination of divergent genomes in allopolyploids creates genome-wide gene expression chang

115 n of the evolutionarily divergent genomes in allopolyploids creates regulatory incompatibilities that

116 a napus (2n = 4x = 38, AACC) is an important allopolyploid crop derived from interspecific crosses be

117 Cotton (Gossypium hirsutum L.) is a key allopolyploid crop with global economic importance.

118 arly stages of fiber cell development and in allopolyploid crops is poorly understood.

119 y small RNAs, could facilitate loss of SI in allopolyploid crucifers.

120 otton (Gossypium) and 4 species representing allopolyploid derivatives of the diploids.

121 To address the question why allopolyploids display hybrid vigor, we compared the nat

122 Segregating hybrids and stable allopolyploids display morphological vigour, and Arabido

123 two subgenomes that merged to form that new allopolyploid do not generally express their genes equal

124 he fate of duplicate genes and adaptation of allopolyploids during evolution.

125 covery of homeolog-specific base-identity in allopolyploids even in the absence of a diploid-progenit

126 f homologs, suggesting their origins from an allopolyploid event.

127 labra) provides genomic evidence of a recent allopolyploid event.

128 h far-reaching implications in understanding allopolyploid evolution and applying them to the develop

129 These processes provide insights into allopolyploid evolution and its relationship with crop d

130 ify several presently disparate hallmarks of allopolyploid evolution, including genome-wide expressio

131 a molecular basis for de novo variation and allopolyploid evolution.

132 This has relevance for our understanding of allopolyploid evolution.

133 ssion variation, and hence may contribute to allopolyploid evolution.

134 thologous regions (COREs), most loci in both allopolyploids exhibited expression patterns that were v

135 rgence of the homoeologous gene pairs in the allopolyploid F1 hybrids and suggest that high-parental

136 ed to understand whether the gametophytes of allopolyploid ferns respond differently to climate-relat

137 Allopolyploid Festuca x Lolium hybrids displayed potenti

138 may undergo recombination immediately after allopolyploid formation and continue over successive gen

139 plicate gene expression may arise soon after allopolyploid formation and that these mechanisms vary a

140 ion biases are arguably the expectation upon allopolyploid formation rather than a phenomenon needing

141 Following allopolyploid formation, it appears that the trans-regul

142 e expression at the proteome level caused by allopolyploid formation, we conducted a comparative anal

143 ically in C. arabica, probably shortly after allopolyploid formation.

144 ranscriptome divergence is reconciled during allopolyploid formation.

145 , but occurs within the first generations of allopolyploid formation.

146 However, particularly in the case of allopolyploids formed from progenitors with different ge

147 ubgenomic references and genotype individual allopolyploids from whole-genome resequencing data.

148 d sequenced 16 loci from both genomes of the allopolyploid, from both progenitor diploid genomes and

149 A1 on output traits suggest that hybrids and allopolyploids gain advantages from the control of circa

150 cases of homoeologue loss arose in the first allopolyploid generation, but after 80 years, 1.6% of ho

151 scriptional regulation and enable subsequent allopolyploid generations to develop novel patterns of p

152 id crops contributes to our understanding of allopolyploid genome evolution and opens a way to target

153 The allopolyploid genome was divided into subgenomes from Sa

154 ask due to its large, highly repetitive, and allopolyploid genome.

155 NA between closely related species and their allopolyploid genomes at both coarse and fine scale.

156 chromosomal combinations brought together in allopolyploid genomes cannot be purged through Mendelian

157 ca genus encompasses three diploid and three allopolyploid genomes, but a clear understanding of the

158 We introduce the Comprehensive Allopolyploid Genotyper (CAPG), which formulates an expl

159 e analysis of cotton seed proteomes from the allopolyploid Gossypium hirsutum (AD genome) and its mod

160 that the most salt-tolerant species were the allopolyploid Gossypium mustelinum from north-east Brazi

161 allopolyploid grasses.

162 t, analysis of genetic diversity patterns in allopolyploids has tended to rely on the interpretation

163 also shows that duplicated 5S rDNA arrays in allopolyploids have retained their subgenomic identity s

164 Allopolyploid hybridization serves as a major pathway fo

165 h of some chromosomes has been documented in allopolyploid hybrids and could be caused by the activat

166 gous gene copies during the formation of new allopolyploid hybrids and their subsequent evolution?

167 iers using embryo rescue, bridging lines and allopolyploid hybrids, and synthesized a library of intr

168 influence the establishment and evolution of allopolyploids in nature.

169 c chromosome number and resulted in distinct allopolyploids in the Saccharum complex.

170 olar dominance is a phenomenon in hybrids or allopolyploids in which nucleoli form on chromosomes inh

171 ine schulzii, a textbook example of a recent allopolyploid, in its ~110-year history of human-induced

172 cterization of homoeallelic base-identity in allopolyploids is difficult since homeologous subgenomes

173 nsuring faithful homologous recombination in allopolyploids is essential to maintain optimal fertilit

174 en siRNAs and nonadditive gene expression in allopolyploids is insignificant.

175 In contrast, genome size divergence between allopolyploids is manifested through differential accumu

176 undamental question of the diploidization of allopolyploids is whether and to what extent the DNA seq

177 c allele-specific expression analysis to the allopolyploid level, we distinguish the distinct effects

178 al data to infer relationships in an ancient allopolyploid lineage, the walnut family (Juglandaceae),

179 act as the main barrier to establishment of allopolyploid lineages, perhaps helping to explain why a

180 th six isogenic resynthesised Brassica napus allopolyploid lines and investigated subgenome dominance

181 o differences in regulatory regions in these allopolyploid lines.

182 ploid hybrid (M. robertsii), a resynthesized allopolyploid (M. peregrinus), and progenitor species (M

183 e loss of low-copy sequences, common to both allopolyploids, may reflect genome diploidization, a pro

184 sis suecica and have characterized the first allopolyploid meioses.

185 These results suggest that stabilization of allopolyploid meiosis can be enhanced by loss of a key m

186 (TE) methylation in a natural, <140-year-old allopolyploid (Mimulus peregrinus), a resynthesized inte

187 One such example is the allopolyploid model species Arabidopsis suecica which or

188 During evolution successful allopolyploids must overcome 'genome shock' between hybr

189 us genomes in a single nucleus, newly formed allopolyploids must rapidly adapt meiosis to restore bal

190 8 unique imperfect SSRs, reveal the putative allopolyploid nature of S. capillata, investigate the ev

191 logical studies have shown many newly formed allopolyploids (neoallopolyploids) exhibit chromosomal v

192 rived organellar genomes and the half of the allopolyploid nuclear genome from the paternal progenito

193 nstead appear to evolve independently in the allopolyploid nucleus.

194 polyploid cotton (Gossypium L.), a synthetic allopolyploid of the same genomic composition, and model

195 genomic sequencing of synthetic and natural allopolyploids of Arabidopsis thaliana and Arabidopsis a

196 ding yeast species, generating Saccharomyces allopolyploids of at least six species.

197 We investigated this phenomenon in auto- and allopolyploids of the Festuca-Lolium complex providing i

198 e also examine 44 first-generation synthetic allopolyploids of the same species.

199 HTR12 signal was found on all centromeres in allopolyploids of these two species.

200 s illuminate the complex genome evolution of allopolyploids, offering opportunities for genomic enhan

201 In interspecific hybrids or allopolyploids, often one parental set of ribosomal RNA

202 selection, our conceptual frameworks for how allopolyploid organisms form tend to assume that the new

203 om the hexaploid bread wheat and confirm the allopolyploid origin of bread wheat along with the close

204 In lineages of allopolyploid origin, sets of homoeologous chromosomes m

205 ransposable element abundance rather than an allopolyploid origin.

206 indicated a clonal structure consistent with allopolyploid origins for each population.

207 -homologous crossovers has been described in allopolyploids other than in bread wheat.

208 statistically significantly elevated in the allopolyploid over progenitor expression levels.

209 ion of centromeres from different species in allopolyploids over millions of years remains largely un

210 ologous chromosome pairing during meiosis in allopolyploid parthenogenesis.

211 curs and that the Hawaiian population of the allopolyploid peat moss Sphagnum palustre probably resul

212 n studied at a population level in a natural allopolyploid plant species.

213 Results showed that karyotype of the nascent allopolyploid plants (AT2) is stable but they showed cle

214 ion occurs in the first-generation synthetic allopolyploid plants and this is associated with a signi

215 Allopolyploid plants are hybrids that contain two copies

216 Allopolyploid plants are long known to be subject to a h

217 Studies of recently formed allopolyploid plants have shown that the two subgenomes

218 In most allopolyploid plants, only homogenetic chromosome pairin

219 oidy increase descended from one species) or allopolyploids (ploidy increase descended from multiple

220 hybrids between the synthetic and a natural allopolyploid pollen viability inversely correlated with

221 Assignment of allopolyploid progenitor species (called subgenomes in t

222 Duplicated gene pairs (homoeologs) in allopolyploids provide additional genetic resources for

223 dence suggests that directional selection in allopolyploids rarely acted on multiple parallel advanta

224 element-specific dynamics in young Nicotiana allopolyploids reflect their dynamics in diploid progeni

225 ecular basis for heterosis, particularly for allopolyploids, remains elusive.

226 Allopolyploids result from hybridization between differe

227 Polyploids are commonly categorized as allopolyploids resulting from the increase of chromosome

228 that 'replaying the evolutionary tape' in an allopolyploid results in largely repeatable and predicta

229 ima, their F1 hybrid S. x townsendii and the allopolyploid S. anglica under phenanthrene-induced stre

230 xpression patterns among eight organs in the allopolyploid showed that silencing and preferential exp

231 al allopolyploids, but F(1) hybrids and S(1) allopolyploids showed less partitioning of expression th

232 First-generation neo-allopolyploid siblings vary considerably in fertility, m

233 Allopolyploid speciation and chemical defense diversific

234 second intron) we show multiple instances of allopolyploid speciation in Persicaria (Polygonaceae), w

235 ger and genome duplication in the context of allopolyploid speciation in Spartina.

236 sity and expression in the context of recent allopolyploid speciation, using the Spartina system, whi

237 scussed in the context of recent examples of allopolyploid speciation, which generally involve hybrid

238 , has been involved in at least six cases of allopolyploid speciation.

239 rowly endemic hexaploid, P. puritanorum, the allopolyploid species also are widespread, plastic, ecol

240 ological description of meiosis in the model allopolyploid species Arabidopsis suecica (2n = 4x = 26)

241 ese fine-tuned interactions, as newly formed allopolyploid species confront biparental nuclear chromo

242 Allopolyploid species have often yielded higher mutation

243 udes two classic examples of recently formed allopolyploid species in North America: T. mirus and T.

244 recombination of homoeologous chromosomes in allopolyploid species is central to understanding plant

245 Recently formed allopolyploid species offer unprecedented insights into

246 gle orthologous region (Adh1-Adh2) from four allopolyploid species representing each of the known Ory

247 The genome of an allopolyploid species results from initial interactions

248 nvestigate the origin of the D genome of the allopolyploid species Triticum aestivum and Aegilops cyl

249 Bread wheat is an allopolyploid species with a large, highly repetitive ge

250 ation could account for the abundance of the allopolyploid species without lateral stamens.

251 samples were classified into two diploid or allopolyploid species, and then further grouped into dis

252 a consists of both recently formed and older allopolyploid species, representing an attractive system

253 enome dominance has been reported in diverse allopolyploid species, where genes from one subgenome ar

254 is condition is more difficult to fulfill in allopolyploid species, which have more than two sets of

255 Senecio cambrensis is a new allopolyploid species, which originated independently in

256 ay to quantify population differentiation in allopolyploid species.

257 understanding the evolutionary trajectory of allopolyploid species.

258 hat could be tested and generalized in other allopolyploid species.

259 e genomic shock in interspecific hybrids and allopolyploids: Stable inheritance of repeat-associated

260 hodologies used to identify the ancestors of allopolyploid subgenomes, discuss the advantages and dis

261 idy may reflect features that are general to allopolyploids such as the lack of F2 hybrid breakdown u

262 In natural allopolyploids, such mobilisations correlate with imbala

263 al genomes, although comparison of auto- and allopolyploids suggests that intergenomic incompatibilit

264 This study investigated 13 allopolyploid systems in North America (10 ferns and thr

265 ic interactions, mandatory to the success of allopolyploid systems, as in S. alburnoides.

266 and doubling have been demonstrated in many allopolyploid systems, encompassing a diversity of pheno

267 the F1 hybrid and additional changes in the allopolyploid targeting developmental processes.

268 homoeolog silencing were observed in natural allopolyploids than in F(1) hybrid and synthetic allopol

269 documented in both resynthesized and natural allopolyploids that contain two or more divergent genome

270 In allopolyploids, the conditional dynamics of homoeologous

271 In allopolyploids, the problem is compounded because geneti

272 namics of six transposable elements in these allopolyploids, their diploid progenitors and in corresp

273 The poor fertility of such neo-allopolyploids thus strongly selects for the limitation

274 For allopolyploids to produce viable gametes and be fertile,

275 the proteomes of the recently formed natural allopolyploid Tragopogon mirus and its diploid parents (

276 In allopolyploids, transcriptional changes appeared immedia

277 e is a high level of concordance between the allopolyploid transcriptome and translatome overall but

278 Allopolyploids undergo bivalent pairing at meiosis becau

279 Recent studies in hybrids and allopolyploids using transcriptomic, proteomic, metabolo

280 ed on studies of single selected genes in an allopolyploid vertebrate, the Iberian fish Squalius albu

281 Salt responsiveness in both allopolyploids was strongly biased toward the D-genome p

282 The abiotic niches of the allopolyploids were compared with those of their diploid

283 Allopolyploid wheat (Triticum aestivum L.) carries three

284 of the coding and repetitive regions of the allopolyploid wheat genome.

285 s an adaptation to modulate recombination in allopolyploid wheat.

286 d on segregation data from selfed progeny of allopolyploids when there is incomplete information abou

287 , but many economically important plants are allopolyploids, where homoeologous similarity obscures t

288 e A-genome in the diploid hybrid and natural allopolyploids, whereas the direction was reversed in th

289 Newly synthesized Arabidopsis allopolyploids, which display phenotypic instability and

290 Fifteen species seem to be allopolyploids, which is higher than the number found in

291 d organisms form tend to assume that the new allopolyploid will show balanced expression between its

292 Like a diploid hybrid, allopolyploids will have two versions, or homeoalleles,

293 lated species results in the formation of an allopolyploid with multiple subgenomes.

294 Polyploid wheats are allopolyploids with most genes present in two (tetraploi