Gossypium barbadense

Cloning of a phosphatidylinositol 4-kinase gene based on fiber strength transcriptome QTL mapping in the cotton species Gossypium barbadense

H. W. Liu, Shi, R. F., Wang, X. F., Pan, Y. X., Zang, G. Y., and Ma, Z. Y., Cloning of a phosphatidylinositol 4-kinase gene based on fiber strength transcriptome QTL mapping in the cotton species Gossypium barbadense, vol. 11, pp. 3367-3378, 2012.

Sea Island cotton (Gossypium barbadense) is highly valued for its superior fiber qualities, especially fiber strength. Based on a transcript-derived fragment originated from transcriptome QTL mapping, a fiber strength related candidate gene of phosphatidylinositol 4-kinase cDNA, designated as GbPI4K, was first cloned, and its expression was characterized in the secondary cell wall thickening stage of G. barbadense fibers. The ORF of GbPI4K was found to be 1926 bp in length and encoded a predicted protein of 641 amino acid residues.

Association analysis of yield and fiber quality traits in Gossypium barbadense with SSRs and SRAPs

X. Q. Wang, Yu, Y., Li, W., Guo, H. L., Lin, Z. X., and Zhang, X. L., Association analysis of yield and fiber quality traits in Gossypium barbadense with SSRs and SRAPs, vol. 12, pp. 3353-3362, 2013.

Cotton is an important cash crop. Mining for quantitative trait loci related to yield and fiber quality traits using association analysis has many advantages for cotton research. In this study, 170 simple sequence repeats (SSRs) and 258 sequence-related amplified polymorphisms (SRAPs) were used to analyze the association of 3 yield component traits and 5 fiber quality traits of 55 Gossypium barbadense accessions in 2009 and 2010. Principal component analysis of SSRs and SRAPs showed 3 and 2 subgroups, respectively.

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