Eintrag weiter verarbeiten
Buchumschlag von Genome‐wide association study discovered genetic variation and candidate genes of fibre quality traits in Gossypium hirsutum L.
Verfügbar über Open Access

Genome‐wide association study discovered genetic variation and candidate genes of fibre quality traits in Gossypium hirsutum L.

Gespeichert in:

Bibliographische Detailangaben
Zeitschriftentitel: Plant Biotechnology Journal
Personen und Körperschaften: Sun, Zhengwen, Wang, Xingfen, Liu, Zhengwen, Gu, Qishen, Zhang, Yan, Li, Zhikun, Ke, Huifeng, Yang, Jun, Wu, Jinhua, Wu, Liqiang, Zhang, Guiyin, Zhang, Caiying, Ma, Zhiying
In: Plant Biotechnology Journal, 15, 2017, 8, S. 982-996
Medientyp: E-Article
Sprache: Englisch
veröffentlicht:
Wiley
Schlagwörter:
Details
Zusammenfassung: <jats:title>Summary</jats:title><jats:p>Genetic improvement of fibre quality is one of the main breeding goals for the upland cotton, <jats:italic>Gossypium hirsutum</jats:italic>, but there are difficulties with precise selection of traits. Therefore, it is important to improve the understanding of the genetic basis of phenotypic variation. In this study, we conducted phenotyping and genetic variation analyses of 719 diverse accessions of upland cotton based on multiple environment tests and a recently developed Cotton 63K Illumina Infinium <jats:styled-content style="fixed-case">SNP</jats:styled-content> array and performed a genome‐wide association study (<jats:styled-content style="fixed-case">GWAS</jats:styled-content>) of fibre quality traits. A total of 10 511 polymorphic <jats:styled-content style="fixed-case">SNP</jats:styled-content>s distributed in 26 chromosomes were screened across the cotton germplasms, and forty‐six significant <jats:styled-content style="fixed-case">SNP</jats:styled-content>s associated with five fibre quality traits were detected. These significant <jats:styled-content style="fixed-case">SNP</jats:styled-content>s were scattered over 15 chromosomes and were involved in 612 unique candidate genes, many related to polysaccharide biosynthesis, signal transduction and protein translocation. Two major haplotypes for fibre length and strength were identified on chromosomes Dt11 and At07. Furthermore, by combining <jats:styled-content style="fixed-case">GWAS</jats:styled-content> and transcriptome analysis, we identified 163 and 120 fibre developmental genes related to length and strength, respectively, of which a number of novel genes and 19 promising genes were screened. These results provide new insight into the genetic basis of fibre quality in <jats:italic>G. hirsutum</jats:italic> and provide candidate <jats:styled-content style="fixed-case">SNP</jats:styled-content>s and genes to accelerate the improvement of upland cotton.</jats:p>
Umfang: 982-996
ISSN: 1467-7644
1467-7652
DOI: 10.1111/pbi.12693