Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton
Cotton fiber, a raw natural fiber material, is widely used in the textile industry. Understanding the genetic mechanism of fiber traits is helpful for fiber quality improvement. In the present study, the genetic basis of fiber quality traits was explored using two recombinant inbred lines (RILs) and...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Oxford University Press
2016-09-01
|
| Series: | G3: Genes, Genomes, Genetics |
| Subjects: | |
| Online Access: | http://g3journal.org/lookup/doi/10.1534/g3.116.031302 |
| _version_ | 1818669306869710848 |
|---|---|
| author | Lianguang Shang Yumei Wang Xiaocui Wang Fang Liu Abdugheni Abduweli Shihu Cai Yuhua Li Lingling Ma Kunbo Wang Jinping Hua |
| author_facet | Lianguang Shang Yumei Wang Xiaocui Wang Fang Liu Abdugheni Abduweli Shihu Cai Yuhua Li Lingling Ma Kunbo Wang Jinping Hua |
| author_sort | Lianguang Shang |
| collection | DOAJ |
| description | Cotton fiber, a raw natural fiber material, is widely used in the textile industry. Understanding the genetic mechanism of fiber traits is helpful for fiber quality improvement. In the present study, the genetic basis of fiber quality traits was explored using two recombinant inbred lines (RILs) and corresponding backcross (BC) populations under multiple environments in Upland cotton based on marker analysis. In backcross populations, no significant correlation was observed between marker heterozygosity and fiber quality performance and it suggested that heterozygosity was not always necessarily advantageous for the high fiber quality. In two hybrids, 111 quantitative trait loci (QTL) for fiber quality were detected using composite interval mapping, in which 62 new stable QTL were simultaneously identified in more than one environment or population. QTL detected at the single-locus level mainly showed additive effect. In addition, a total of 286 digenic interactions (E-QTL) and their environmental interactions [QTL × environment interactions (QEs)] were detected for fiber quality traits by inclusive composite interval mapping. QE effects should be considered in molecular marker-assisted selection breeding. On average, the E-QTL explained a larger proportion of the phenotypic variation than the main-effect QTL did. It is concluded that the additive effect of single-locus and epistasis with few detectable main effects play an important role in controlling fiber quality traits in Upland cotton. |
| first_indexed | 2024-12-17T06:50:07Z |
| format | Article |
| id | doaj.art-c4ce88ac8b9849dd98553ec9364d5514 |
| institution | Directory Open Access Journal |
| issn | 2160-1836 |
| language | English |
| last_indexed | 2024-12-17T06:50:07Z |
| publishDate | 2016-09-01 |
| publisher | Oxford University Press |
| record_format | Article |
| series | G3: Genes, Genomes, Genetics |
| spelling | doaj.art-c4ce88ac8b9849dd98553ec9364d55142022-12-21T21:59:38ZengOxford University PressG3: Genes, Genomes, Genetics2160-18362016-09-01692717272410.1534/g3.116.0313025Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland CottonLianguang ShangYumei WangXiaocui WangFang LiuAbdugheni AbduweliShihu CaiYuhua LiLingling MaKunbo WangJinping HuaCotton fiber, a raw natural fiber material, is widely used in the textile industry. Understanding the genetic mechanism of fiber traits is helpful for fiber quality improvement. In the present study, the genetic basis of fiber quality traits was explored using two recombinant inbred lines (RILs) and corresponding backcross (BC) populations under multiple environments in Upland cotton based on marker analysis. In backcross populations, no significant correlation was observed between marker heterozygosity and fiber quality performance and it suggested that heterozygosity was not always necessarily advantageous for the high fiber quality. In two hybrids, 111 quantitative trait loci (QTL) for fiber quality were detected using composite interval mapping, in which 62 new stable QTL were simultaneously identified in more than one environment or population. QTL detected at the single-locus level mainly showed additive effect. In addition, a total of 286 digenic interactions (E-QTL) and their environmental interactions [QTL × environment interactions (QEs)] were detected for fiber quality traits by inclusive composite interval mapping. QE effects should be considered in molecular marker-assisted selection breeding. On average, the E-QTL explained a larger proportion of the phenotypic variation than the main-effect QTL did. It is concluded that the additive effect of single-locus and epistasis with few detectable main effects play an important role in controlling fiber quality traits in Upland cotton.http://g3journal.org/lookup/doi/10.1534/g3.116.031302fiber qualityQTLrecombinant inbred linebackcross populationUpland cotton |
| spellingShingle | Lianguang Shang Yumei Wang Xiaocui Wang Fang Liu Abdugheni Abduweli Shihu Cai Yuhua Li Lingling Ma Kunbo Wang Jinping Hua Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton G3: Genes, Genomes, Genetics fiber quality QTL recombinant inbred line backcross population Upland cotton |
| title | Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton |
| title_full | Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton |
| title_fullStr | Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton |
| title_full_unstemmed | Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton |
| title_short | Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton |
| title_sort | genetic analysis and qtl detection on fiber traits using two recombinant inbred lines and their backcross populations in upland cotton |
| topic | fiber quality QTL recombinant inbred line backcross population Upland cotton |
| url | http://g3journal.org/lookup/doi/10.1534/g3.116.031302 |
| work_keys_str_mv | AT lianguangshang geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT yumeiwang geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT xiaocuiwang geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT fangliu geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT abdugheniabduweli geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT shihucai geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT yuhuali geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT linglingma geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT kunbowang geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton AT jinpinghua geneticanalysisandqtldetectiononfibertraitsusingtworecombinantinbredlinesandtheirbackcrosspopulationsinuplandcotton |