Fine mapping and candidate gene analysis of qFL-A12-5: a fiber length-related QTL introgressed from Gossypium barbadense into Gossypium hirsutum

Xiao, Xianghui; Liu, Ruixian; Gōng, Jǔwǔ; Li, Pengtao; Li, Ziyin; Gǒng, Wànkuí; Liú, Àiyīng; Gě, Qún; Dèng, Xiǎoyīng; Li, Shaoqi; Chen, Quanjia; Zhang, Hua; Peng, Renhai; Peng, Yan; Shāng, Hǎihóng; Pān, Jìngtāo; Shí, Yùzhēn; Lú, Quánwěi; Yuán, Yǒulù

doi:10.1007/s00122-023-04247-8

Cited by 6 publications

(2 citation statements)

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“…Major fiber length QTLs were identified on Chrs. A07, A10, A12, and D11 in multiple environments by independent research groups (Dong et al., 2019; He et al., 2021; Islam, Thyssen, et al., 2016; Ma et al., 2018; Thyssen et al., 2019; Wang, Qi, et al., 2022; Xiao et al., 2023; Zhang et al., 2020). Fiber length QTL on Chr.…”

Section: Recent Advances In Understanding Of Cotton Fiber Developmentmentioning

confidence: 99%

“…A12 was introgressed from G. barbadense into G. hirsutum and showed stability in multiple environments (Lu et al., 2021; Xiao et al., 2023). The authors proposed that GH_A12G2192 encoding a tetratricopeptide repeat‐like superfamily protein ( GhTPR ) might be a causative gene for this QTL (Xiao et al., 2023). An independent study identified the GhTPR gene ( Ghir_A12G008870 ) on Chr.…”

Section: Recent Advances In Understanding Of Cotton Fiber Developmentmentioning

confidence: 99%

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Bridging molecular genetics and genomics for cotton fiber quality improvement

Naoumkina

Kim

2023

Crop Science

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Upland cotton (Gossypium hirsutum L.) is the main source of natural fiber for the textile industry. Cotton fibers are unicellular trichomes that emerge from the epidermal cells of the seed. In cultivated cotton species, seed trichomes differentiate into two distinct types, spinnable lint, and short fuzz. The main priority for cotton growers is fiber yield, whereas the textile industry also demands better fiber quality characteristics, such as length, uniformity, strength, maturity, and optimal fineness. However, it is a major challenge for breeders to improve fiber quality while maintaining yield, because of the observed negative correlation between yield and fiber quality traits. Recent technical advances in sequencing and bioinformatics have facilitated the assembly of reference quality genomes of multiple cotton species, bringing a new era for cotton genomics. Available genomic resources will help genetically dissect the agronomic and fiber quality traits of cotton and identify gene variants that can be used for cotton improvement through breeding or biotechnology. Here, we review recent progress in the sequencing of genomes of cotton species and approaches in molecular genetics and genomics for the improvement of cotton fiber quality traits.We discuss progress in the understanding of each stage of cotton fiber development and the remaining challenges.

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Section: Recent Advances In Understanding Of Cotton Fiber Developmentmentioning

confidence: 99%

Section: Recent Advances In Understanding Of Cotton Fiber Developmentmentioning

confidence: 99%

Bridging molecular genetics and genomics for cotton fiber quality improvement

Naoumkina

Kim

2023

Crop Science

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Genetic Regulatory Perturbation of Gene Expression Impacted by Genomic Introgression in Fiber Development of Allotetraploid Cotton

Chen,

Hu,

et al. 2024

Advanced Science

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Interspecific genomic introgression is an important evolutionary process with respect to the generation of novel phenotypic diversity and adaptation. A key question is how gene flow perturbs gene expression networks and regulatory interactions. Here, an introgression population of two species of allopolyploid cotton (Gossypium) to delineate the regulatory perturbations of gene expression regarding fiber development accompanying fiber quality change is utilized. De novo assembly of the recipient parent (G. hirsutum Emian22) genome allowed the identification of genomic variation and introgression segments (ISs) in 323 introgression lines (ILs) from the donor parent (G. barbadense 3–79). It documented gene expression dynamics by sequencing 1,284 transcriptomes of developing fibers and characterized genetic regulatory perturbations mediated by genomic introgression using a multi‐locus model. Introgression of individual homoeologous genes exhibiting extreme low or high expression bias can lead to a parallel expression bias in their non‐introgressed duplicates, implying a shared yet divergent regulatory fate of duplicated genes following allopolyploidy. Additionally, the IL N182 with improved fiber quality is characterized, and the candidate gene GhFLAP1 related to fiber length is validated. This study outlines a framework for understanding introgression‐mediated regulatory perturbations in polyploids, and provides insights for targeted breeding of superior upland cotton fiber.

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