QTL mapping of fiber quality and yield-related traits in an intra-specific upland cotton using genotype by sequencing (gbs)

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dc.contributor.author Diouf, Latyr
dc.contributor.author Magwanga, Richard Odongo
dc.contributor.author Gong, Wenfang
dc.contributor.author He, Shoupu
dc.contributor.author Pan, Zhaoe
dc.contributor.author Jia, Yin Hua
dc.contributor.author Kirungu, Joy Nyangasi
dc.contributor.author Du, Xiongming
dc.date.accessioned 2018-02-02T11:47:29Z
dc.date.available 2018-02-02T11:47:29Z
dc.date.issued 2018-02
dc.identifier.uri www.mdpi.com/journal/ijms
dc.description.abstract Fiber quality and yield improvement are crucial for cotton domestication and breeding. With the transformation in spinning techniques and multiplicity needs, the development of cotton fiber quality and yield is of great importance. A genetic map of 5178 Single Nucleotide Polymorphism (SNP) markers were generated using 277 F2:3 population, from an intra-specific cross between two upland cotton accessions, CCRI35 a high fiber quality as female and Nan Dan Ba Di Da Hua (NH), with good yield properties as male parent. The map spanned 4768.098 cM with an average distance of 0.92 cM. A total of 110 Quantitative Traits Loci (QTLs) were identified for 11 traits, but only 30 QTLs were consistent in at least two environments. The highest percentage of phenotypic variance explained by a single QTL was 15.45%. Two major cluster regions were found, cluster 1 (chromosome17-D03) and cluster 2 (chromosome26-D12). Five candidate genes were identified in the two QTL cluster regions. Based on GO functional annotation, all the genes were highly correlated with fiber development, with functions such as protein kinase and phosphorylation. The five genes were associated with various fiber traits as follows: Gh_D03G0889 linked to qFM-D03_cb, Gh_D12G0093, Gh_D12G0410, Gh_D12G0435 associated with qFS-D12_cb and Gh_D12G0969 linked to qFY-D12_cb. Further structural annotation and fine mapping is needed to determine the specific role played by the five identified genes in fiber quality and yield related pathway. en_US
dc.language.iso en en_US
dc.publisher International Journal Molecular Science en_US
dc.subject QTL mapping en_US
dc.subject fiber quality en_US
dc.subject upland cotton en_US
dc.subject intra-specific en_US
dc.subject yield related traits en_US
dc.subject gene ontology en_US
dc.subject genotype by sequencing en_US
dc.title QTL mapping of fiber quality and yield-related traits in an intra-specific upland cotton using genotype by sequencing (gbs) en_US
dc.type Article en_US

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