Correction: DNA Sequence Evolution and Rare Homoeologous Conversion in Tetraploid Cotton

Page, Justin T.; Liechty, Zach S.; Alexander, Rich H.; Clemons, Kimberly; Hulse‐Kemp, Amanda M.; Ashrafi, Hamid; Deynze, Allen Van; Stelly, David M.; Udall, Joshua A.

doi:10.1371/journal.pgen.1006206

Cited by 5 publications

(3 citation statements)

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“…The meiotic behavior of triploid hybrids is close to what can be expected with a majority of pollen mother cells with 13 bivalents corresponding to homologous pairing of the 13 A chromosomes, whereas the D chromosomes remained at univalent stage with 13 univalents. However, it is important to note that several cells showed the presence of multivalents, indicating the possibility of homeologous pairing between A and D genomes, even if these exchanges were difficult to detect after a long evolution in G. hirsutum ( Page et al 2016 ). In the third hybrid, the presence of >2 A genomes was shown by the morphological characteristics (leaf shape, flower size, and red spots on the corolla).…”

Section: Discussionmentioning

confidence: 99%

Assessment of Gene Flow BetweenGossypium hirsutumandG. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor

Montes

Coriton

Eber

et al. 2017

G3 Genes|Genomes|Genetics

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In the framework of a gene flow assessment, we investigated the natural hybridization rate between Gossypium hirsutum (AADD genome) and G. herbaceum (AA genome). The latter species, a diploid progenitor of G. hirsutum, is spontaneously present in South Africa. Reciprocal crosses were performed without emasculation between G. herbaceum and G. hirsutum. Neither examination of the morphological characteristics nor flow cytometry analysis of the 335 plants resulting from the G. hirsutum × G. herbaceum cross showed any hybrid features. Of the 148 plants produced from the G. herbaceum × G. hirsutum cross, three showed a hybrid phenotype, and their hybrid status was confirmed by SSR markers. Analysis of DNA content by flow cytometry and morphological traits clearly showed that two of these plants were triploid (AAD). The third plant had a flow cytometry DNA content slightly higher than G. hirsutum. In addition, its morphological characteristics (plant architecture, presence and size of petal spots, leaf shape) led us to conclude that this plant was AAAD thus resulting from fertilization with an unreduced AA gamete of the female G. herbaceum parent. Fluorescent In Situ Hybridization (FISH) and meiotic behavior confirmed this hypothesis. To the best of our knowledge, this is the first description of such gametes in G. herbaceum, and it opens new avenues in breeding programs. Furthermore, this plant material could provide a useful tool for studying the expression of genes duplicated in the A and D cotton genome.

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Section: Discussionmentioning

confidence: 99%

Assessment of Gene Flow BetweenGossypium hirsutumandG. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor

Montes

Coriton

Eber

et al. 2017

G3 Genes|Genomes|Genetics

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“…This result indicated that human breeding introgressed a lot more segments of G. hirsutum into the G. barbadense than natural introgression. Among all the chromosomes, the four largest IS regions (>9 Mb) were identified, including one previously identified region located from approximately 51.1 to 71.2 Mb (IS-A01-22) (Page et al 2016) on chromosome A01 and three new regions on A01 (IS-A01-28), A06 (IS-A06-12), and A10 (IS-A10-8) (Figure 2a,c; Figures S2-S6), and all these four IS regions overlapped with the highdiversity and high-divergence regions identified by π and F ST (Figure 2c-h). In total, approximately 70% of the introgression regions (approximately 122.5 Mb) were found overlapped with these high-genetic-diversity regions, with more than 95% introgression regions overlapping with the high-diversity regions in chromosomes A01, D03, and D09 (Figure 2c-h, Table S11).…”

Section: Population Properties Of G Barbadense Worldwidementioning

confidence: 99%

“…Since the last century, many interspecific crosses between G. hirsutum and G. barbadense have been developed to identify quantitative trait loci (QTLs) for fiber quality and yield traits (Jiang et al, 1998;Kohel et al, 2001;Paterson et al, 2003;Draye et al, 2005;Lacape et al, 2005;He et al, 2007;Lacape et al, 2009;Yu et al, 2013;Said et al, 2015;Chen et al, 2018). Several bidirectionally introgressed segments (ISs) from G. hirsutum to G. barbadense have been identified (Page et al, 2016;Fang et al, 2017;Hu et al, 2019;Wang et al, 2019). A recent report revealed a yieldincreasing locus (Gb_INT13) in G. barbadense cultivars that might have been derived from G. hirsutum (Nie et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Introgression from Gossypium hirsutum is a driver for population divergence and genetic diversity in Gossypium barbadense

Wang

Dong

et al. 2022

The Plant Journal

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During the domestication and improvement processes, interspecific introgression from Gossypium hirsutum has reorganized the genomic architecture of Gossypium barbadense; however, the introgression details and the trait-related genetic loci remain largely unknown. Here, we perform a genome-wide population analysis and genetically recategorize 365 G. barbadense accessions into four subgroups which is different from previous categorizations. A total of 315 introgression events from G. hirsutum to G. barbadense, which primarily contributed to population divergence and agronomic trait variation in G. barbadense, are identified. We find that 70% introgression from G. hirsutum have greatly increased the genetic diversity and divergence of G. barbadense. Some loci are identified with divergent haplotype selection for adaptation to the environment at high latitudes. Through genome-wide association study and genome linkage disequilibrium interval haplotyping analyses, two fiber micronaire-related haplotype blocks are detected, one of which (FM2) is introgressed from G. hirsutum. Seven distinguished traits related to growth period, plant architecture, and stronger vegetative growth habit are found to have pleiotropic effects controlled by a single gene in G. barbadense. Thus, this study provides new insights into the breeding history of G. barbadense and highlights introgression is a driver for improving cultivars in G. barbadense.

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Genome Resequencing Reveals Genetic Variation between the Parents of An Elite Hybrid Upland Cotton

Song

Wang

et al. 2018

Agronomy

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Cotton is one of the most important economic crops worldwide. As the global demands rising, cotton yield improvement is the most important goal of cotton breeding. Hybrids have great potential for increasing yield, however, the genetic mechanism of hybrids is still not clear. To investigate the genetic basis of cotton hybrids, we resequenced 9053 and sGK9708 with 62.13x coverage depth, the parents of the elite hybrid cotton CCRI63 that has obvious heterosis in lint percentage (LP) and boll weight (BW). Based on the cotton reference genome (TM-1), 1,287,661 single nucleotide polymorphisms (SNPs) and 152,479 insertions/deletions (InDels) were identified in 9053, and 1,482,784 SNPs and 152,985 InDels in sGK9708. Among them, 8649 SNPs and 629 InDels in the gene coding regions showed polymorphism between parents. Moreover, these variations involved 5092 genes, and 3835 of these genes were divided into 10 clusters based on the gene expression profiles. The genes in Cluster 3 and 7 were specifically expressed in the ovule and fiber development stage, suggesting that they might relate to LP and BW. We further co-localized the polymorphic SNPs and InDels with the reported quantitative trait loci (QTLs) of LP and BW, and identified 68 genes containing the polymorphic SNPs or InDels within these QTL intervals and as being related to fiber development. This suggested that the outstanding traits of CCRI63 such as LP and BW might be generated by accumulating the favorable variations from the parents. The results generated herein provide a genetic basis for cotton hybrids and genetic markers for marker-assisted selection breeding of cotton.

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Correction: DNA Sequence Evolution and Rare Homoeologous Conversion in Tetraploid Cotton

Cited by 5 publications

References 1 publication

Assessment of Gene Flow BetweenGossypium hirsutumandG. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor

Assessment of Gene Flow BetweenGossypium hirsutumandG. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor

Introgression from Gossypium hirsutum is a driver for population divergence and genetic diversity in Gossypium barbadense

Genome Resequencing Reveals Genetic Variation between the Parents of An Elite Hybrid Upland Cotton

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