Quantitative Trait Loci Mapping and Candidate Gene Analysis for Fiber Quality Traits in Upland Cotton DOI Open Access
Xiaoyun Jia, Hongxia Zhao,

Jijie Zhu

и другие.

Опубликована: Июнь 25, 2024

Superior fiber quality is one of the most important objectives in cotton breeding. To detect genetic basis underlying quality, an F2 population containing 413 plants was constructed by crossing Jifeng 914 and 173, both which have superior with 173 being better. Five traits were investigated F2, F2:3, F2:4, F2:5 populations. Quantitative trait loci (QTL) mapping conducted based on a high-density map 11,488 single nucleotide polymorphisms (SNPs) spanning 4,202.12 cM length. Transgressive segregation patterns complex correlations five tested observed. A total 108 QTLs found, including 27 for length (FL), 16 strength (FS), 24 micronaire (MC), 17 uniformity (FU), elongation rate (FE). Chromosome A7 contained 12 QTL, ranking first. No QTL found chromosome D1 D11. Each contributed 1.98%–21.45% to phenotypic variation (PV), 13 major effect that more than 10% toward PV. Two could be repeatedly detected three populations, qFL-D3-2 9.18%–21.45% PV, qFS-A11-1 F2:4 6.05%–10.41% Another seven stable two four QTLs: qFL-A12-3, qFS-D10-2, qMC-D6-2, qMC-D8-1. Fourteen QTL-overlapping regions might explain among traits. Four A11, D3, D6, D10 covered are promising further fine mapping. The genomic populations contain 810 genes. Gene functional analysis revealed annotated genes mainly involved protein binding metabolic pathways. Fifteen candidate region highly expressed or ovules during initiation, elongation, secondary cell wall thickening, maturation stages. qRT-PCR Ghir_D03G005440.1 Ghir_D03G011310.1 may play role promoting Ghir_D03G006470.1 beneficial elongation. This study provides information revealing molecular quality.

Язык: Английский

Quantitative Trait Loci Mapping and Candidate Gene Analysis for Fiber Quality Traits in Upland Cotton DOI Open Access
Xiaoyun Jia, Hongxia Zhao,

Jijie Zhu

и другие.

Опубликована: Июнь 25, 2024

Superior fiber quality is one of the most important objectives in cotton breeding. To detect genetic basis underlying quality, an F2 population containing 413 plants was constructed by crossing Jifeng 914 and 173, both which have superior with 173 being better. Five traits were investigated F2, F2:3, F2:4, F2:5 populations. Quantitative trait loci (QTL) mapping conducted based on a high-density map 11,488 single nucleotide polymorphisms (SNPs) spanning 4,202.12 cM length. Transgressive segregation patterns complex correlations five tested observed. A total 108 QTLs found, including 27 for length (FL), 16 strength (FS), 24 micronaire (MC), 17 uniformity (FU), elongation rate (FE). Chromosome A7 contained 12 QTL, ranking first. No QTL found chromosome D1 D11. Each contributed 1.98%–21.45% to phenotypic variation (PV), 13 major effect that more than 10% toward PV. Two could be repeatedly detected three populations, qFL-D3-2 9.18%–21.45% PV, qFS-A11-1 F2:4 6.05%–10.41% Another seven stable two four QTLs: qFL-A12-3, qFS-D10-2, qMC-D6-2, qMC-D8-1. Fourteen QTL-overlapping regions might explain among traits. Four A11, D3, D6, D10 covered are promising further fine mapping. The genomic populations contain 810 genes. Gene functional analysis revealed annotated genes mainly involved protein binding metabolic pathways. Fifteen candidate region highly expressed or ovules during initiation, elongation, secondary cell wall thickening, maturation stages. qRT-PCR Ghir_D03G005440.1 Ghir_D03G011310.1 may play role promoting Ghir_D03G006470.1 beneficial elongation. This study provides information revealing molecular quality.

Язык: Английский

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