Genetic dissection of QTLs linked with seedling, yield and fiber quality traits of upland cotton under salt stress field conditions

Euphytica ◽  
2021 ◽  
Vol 217 (12) ◽  
Author(s):  
Ying Su ◽  
Shiwei Geng ◽  
Anhui Guo ◽  
Babar Ijaz ◽  
Bin Li ◽  
...  
Keyword(s):  
Salt Stress ◽  
Stress Field ◽  
Upland Cotton ◽  
Fiber Quality ◽  
Field Conditions ◽  
Genetic Dissection ◽  
Quality Traits ◽  
Fiber Quality Traits

scholarly journals QTL controlling fiber quality traits under salt stress in upland cotton (Gossypium hirsutum L.)

2021 ◽  
Author(s):  
An-hui Guo ◽  
Ying Su ◽  
Yi Huang ◽  
Yu-mei Wang ◽  
Hu-shuai Nie ◽  
...  
Keyword(s):  
Salt Stress ◽  
Fatty Acid ◽  
Gossypium Hirsutum ◽  
Salinity Stress ◽  
Upland Cotton ◽  
Fiber Length ◽  
Fiber Strength ◽  
Fiber Quality ◽  
Quality Traits ◽  
Fiber Quality Traits

Abstract Key message QTL for fiber quality traits under salt stress discerned candidate genes controlling fatty acid metabolism. Abstract Salinity stress seriously affects plant growth and limits agricultural productivity of crop plants. To dissect the genetic basis of response to salinity stress, a recombinant inbred line population was developed to compare fiber quality in upland cotton (Gossypium hirsutum L.) under salt stress and normal conditions. Based on three datasets of (1) salt stress, (2) normal growth, and (3) the difference value between salt stress and normal conditions, 51, 70, and 53 QTL were mapped, respectively. Three QTL for fiber length (FL) (qFL-Chr1-1, qFL-Chr5-5, and qFL-Chr24-4) were detected under both salt and normal conditions and explained 4.26%, 9.38%, and 3.87% of average phenotypic variation, respectively. Seven genes within intervals of two stable QTL (qFL-Chr1-1 and qFL-Chr5-5) were highly expressed in lines with extreme long fiber. A total of 35 QTL clusters comprised of 107 QTL were located on 18 chromosomes and exhibited pleiotropic effects. Thereinto, two clusters were responsible for improving five fiber quality traits, and 6 influenced FL and fiber strength (FS). The QTL with positive effect for fiber length exhibited active effects on fatty acid synthesis and elongation, but the ones with negative effect played passive roles on fatty acid degradation under salt stress.

Construction of genetic map and QTL analysis of fiber quality traits for Upland cotton (Gossypium hirsutum L.)

Euphytica ◽  
2014 ◽  
Vol 201 (2) ◽  
pp. 195-213 ◽  
Author(s):  
Shiyi Tang ◽  
Zhonghua Teng ◽  
Tengfei Zhai ◽  
Xiaomei Fang ◽  
Fang Liu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Genetic Map ◽  
Qtl Analysis ◽  
Upland Cotton ◽  
Fiber Quality ◽  
Quality Traits ◽  
Gossypium Hirsutum L ◽  
Fiber Quality Traits

Genetic map and QTL controlling fiber quality traits in upland cotton (Gossypium hirsutum L.)

Euphytica ◽  
2014 ◽  
Vol 203 (3) ◽  
pp. 615-628 ◽  
Author(s):  
Zhaoyun Tan ◽  
Xiaomei Fang ◽  
Shiyi Tang ◽  
Jian Zhang ◽  
Dajun Liu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Genetic Map ◽  
Upland Cotton ◽  
Fiber Quality ◽  
Quality Traits ◽  
Gossypium Hirsutum L ◽  
Fiber Quality Traits

scholarly journals QTL and genetic analysis controlling fiber quality traits using paternal backcross population in Upland Cotton

2019 ◽  
Author(s):  
Lingling Ma ◽  
Ying Su ◽  
Yumei Wang ◽  
Hushai Nie ◽  
Yupeng Cui ◽  
...  
Keyword(s):  
Upland Cotton ◽  
Fiber Strength ◽  
Fiber Quality ◽  
Field Trials ◽  
Quality Traits ◽  
Backcross Population ◽  
Fiber Quality Traits ◽  
Ril Population ◽  
Cotton Hybrid ◽  
Novel Alleles

ABSTRACTIn present study, F14 recombinant inbred line (RIL) population was backcrossed to paternal parent for a paternal backcross (BC/P) population, deriving from one Upland cotton hybrid. Three repetitive BC/P field trials and one BC/M field trial were performed including both two BC populations and the original RIL population. Totally, for fiber quality traits, 24 novel QTLs were detected and 13 QTLs validated previous results. And 19 quantitative trait loci (QTL) in BC/P populations explained 5.01% - 22.09% of phenotype variation (PV). Among the 19 QTLs, three QTLs were detected simultaneously in BC/M population. The present study provided novel alleles of male parent for fiber quality traits with positive genetic effects. Particularly, qFS-Chr3-1 controlling fiber strength explained 22.09% of PV in BC/P population, which increased 0.48 cN/tex for fiber strength. A total of seven, two, eight, two and six QTLs explained over 10.00% of PV for fiber length, fiber uniformity, fiber strength, fiber elongation and fiber micronaire, respectively. In the RIL population, six common QTLs detected in more than one environment such as qFL-Chr1-2, qFS-Chr5-1, qFS-Chr9-1, qFS-Chr21-1, qFM-Chr9-1 and qFM-Chr9-2. Two common QTLs of qFE-Chr2-2 (TMB2386-SWU12343) and qFM-Chr9-1 (NAU2873-CGR6771) explained 22.42% and 21.91% of PV. In addition, a total of 142 and 46 epistatic QTLs and QTL × environments (E-QTLs and QQEs) were identified in RIL-P and BC/P populations, respectively.

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