Assessing the monophyly of polyploid Gossypium species

Grover, Corrinne E.; Grupp, Kara; Wanzek, R. J.; Wendel, Jonathan F.

doi:10.1007/s00606-012-0615-7

Cited by 44 publications

(54 citation statements)

References 42 publications

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“…AD-genome tetraploids combined an A-genome donated by the maternal diploid parent and a D-genome from the pollen parent (Galau and Wilkins 1989;Wendel 1989;Wendel and Cronn 2003). A recent study (Grover et al 2012) demonstrated that the D-genome species G. raimondii and an A-genome species much like modern G. arboreum and G. herbaceum were involved in the creation of the polyploid species, and that this single combination gave rise to the polyploids. The present results also provide direct evidence for the monophyletic origin of polyploid Gossypium species.…”

Section: Discussionmentioning

confidence: 99%

Parental origin and genomic evolution of tetraploidGossypiumspecies by molecular marker and GISH analyses

Chen

et al. 2013

Caryologia

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Polyploidy is a common phenomenon that has played a significant role in the evolutionary history of angiosperms. The allopolyploid Gossypium species (AD-genome) is the result of hybridization between two diploid species (A-genome and D-genome). In order to further explore the possible A-and D-genome donor of extant tetraploid cotton species, two molecular markers (random amplified polymorphic DNA [RPAD] and simple sequence repeat [SSR]) were employed on 13 cotton species including nine diploid (two A-genome and seven D-genome) and four tetraploid cotton species (ADgenome). Genomic in situ hybridization (GISH) was also used to further confirm the genomic origin and organization of tetraploid cotton species. The result showed that 26 of 40 RAPD primers and 49 of 120 SSR primers were polymorphic by 65% and 40.8% respectively. Clustering analyses for RAPD and SSR results indicated that the genome of G. raimondii is the nearest to the D-subgenome of tetraploid species, and it may be the ancestral D-genome donor of the tetraploid cotton. Because of the greatest genetic similarity coefficient between G. herbaceum and G. arboreum, two A-genome diploid species are phylogenetically equidistant from extant tetraploid cotton. GISH using one parental gDNA from A-or D-genome as a labeled probe together with an excess of another as blocking DNA, and tetraploid cotton as target, was found to a superior method for clearly distinguishing between two putative parental genomes. The phylogenetic and GISH results in this paper supported the hypothesis that the donors of the parental genomes are sisters of G. arboreum or G. herbaceum and G. raimondii and provided direct evidence for the origin and monophyly of the polyploidy Gossypium species.

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Section: Discussionmentioning

confidence: 99%

Parental origin and genomic evolution of tetraploidGossypiumspecies by molecular marker and GISH analyses

Chen

et al. 2013

Caryologia

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“…38 Ó 2015 Elsevier Inc. All rights reserved. Gossypium is a remarkably diverse genus, with over 50 recog-44 nized species divided into 8 diploid genome groups (Endrizzi 45 et al, 1985;Wendel and Grover, 2015) and a single, monophyletic 46 (Grover et al, 2012) (Grover et al, 2014). 60 While the genus itself has a relatively broad aggregate distribu-61 tion in the arid to sub-arid tropics and subtropics (Wendel and 62 Cronn, 2003;Wendel and Grover, 2015), the native distribution 63 of allopolyploid cotton is much narrower.…”

Section: Cotton 23mentioning

confidence: 98%

Re-evaluating the phylogeny of allopolyploid Gossypium L.

Grover

Gallagher

Page

et al. 2015

Molecular Phylogenetics and Evolution

103

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The formation of allopolyploid cotton precipitated a rapid diversification and colonization of dry coastal American tropical and subtropical regions. Previous phylogenetic analyses, combined with molecular divergence analyses, have offered a temporal framework for this radiation, but provide only weak support for some of the resolved branches. Moreover, these earlier analyses did not include the recently recognized sixth polyploid species, G. ekmanianum Wittmack. Here we use targeted sequence capture of multiple loci in conjunction with both concatenated and Bayesian concordance analyses to reevaluate the phylogeny of allopolyploid cotton species. Although phylogenetic resolution afforded by individual genes is often low, sufficient signal was attained both through the concatenated and concordance analyses to provide robust support for the Gossypium polyploid clade, which is reported here.

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“…The two natural allopolyploid species G. hirsutum and G. barbadense represent divergent branches from a monophyletic allopolyploidization event that occurred 1-2 million years ago Grover et al 2012b). With both allopolyploids exhibiting the notable morphologic trait of long, spinable cotton fibers, it has long been hypothesized that allopolyploid cotton preferentially displays the physiologic profile and molecular machinery of its A-genome progenitor because it is in this genomic group that long fiber first evolved.…”

Section: Divergent Proteomic Development Following Allopolyploidizationmentioning

confidence: 99%

“…One key advantage of this system is that we could select a relatively simple morphologic structure for evolutionary analysis, namely, the single-celled epidermal trichome colloquially termed cotton "fiber." A second advantage is that we were able to simultaneously study two natural allopolyploid species, Gossypium hirsutum (AD 1 ) and G. barbadense (AD 2 ), that diversified from the same polyploidy event approximately 1-2 million years ago (Grover et al 2012b;Wendel et al 2012) and that were independently domesticated in parallel at least 5000 years ago . These allopolyploids were studied in parallel relative to models of their diploid progenitors, the A-genome species G. arboreum (A 2 ) and the D-genome species G. raimondii (D 5 ).…”

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confidence: 99%

Gene-Expression Novelty in Allopolyploid Cotton: A Proteomic Perspective

Koh

Yoo

et al. 2015

Genetics

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Allopolyploidization is accompanied by changes in gene expression that are thought to contribute to phenotypic diversification. Here we describe global changes in the single-celled cotton fiber proteome of two natural allopolyploid species (Gossypium hirsutum and G. barbadense) and living models of their diploid parents using two different proteomic approaches. In total, 1323 two-dimensional gel electrophoresis spots and 1652 identified proteins by isobaric tags for relative and absolute quantitation were quantitatively profiled during fiber elongation. Between allopolyploids and their diploid A-and D-genome progenitors, amounts of differential expression ranged from 4.4 to 12.8%. Over 80% of the allopolyploid proteome was additively expressed with respect to progenitor diploids. Interestingly, the fiber proteome of G. hirsutum resembles the parental A-genome more closely, where long, spinable fiber first evolved, than does the fiber proteome of G. barbadense. More protein expression patterns were A-dominant than D-dominant in G. hirsutum, but in G. barbadense, the direction of expression-level dominance switched from the D-genome to the A-genome during fiber development. Comparison of developmental changes between the two allopolyploid species revealed a high level of proteomic differentiation despite their shared ancestry, relatively recent evolutionary divergence, and similar gross morphology. These results suggest that the two allopolyploid species have achieved superficially similar modern fiber phenotypes through different evolutionary routes at the proteome level. We also detected homeolog-specific expression for 1001 proteins and present a novel approach to infer the relationship between homeolog-specific and duplicate expression patterns. Our study provides a proteomic perspective on understanding evolutionary consequences of allopolyploidization, showing how protein expression has been altered by polyploidization and subsequently has diversified among species.

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Assessing the monophyly of polyploid Gossypium species

Cited by 44 publications

References 42 publications

Parental origin and genomic evolution of tetraploidGossypiumspecies by molecular marker and GISH analyses

Parental origin and genomic evolution of tetraploidGossypiumspecies by molecular marker and GISH analyses

Re-evaluating the phylogeny of allopolyploid Gossypium L.

Gene-Expression Novelty in Allopolyploid Cotton: A Proteomic Perspective

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