J Integr Plant Biol. ›› 2006, Vol. 48 ›› Issue (3): -.DOI: 10.1111/j.1744-7909.2006.00174.x

• Research Articles •    

Molecular Tagging and Mapping of Quantitative Trait Loci for Lint Percentage and Morphological Marker Genes in Upland Cotton

Wang-Zhen Guo, Guo-Jia Ma, Yi-Chao Zhu, Chen-Xin Yi and Tian-Zhen Zhang   

Abstract: Using 219 F2 individuals developed by crossing the genetic standard line TM-1 and the multiple dominant marker line T586 in Gossypium hirsutum L., a genetic linkage map with 19 linkage groups was constructed based on simple sequence repeat (SSR) markers. Compared with our tetraploid backboned molecular genetic map from a (TM-1×Hai 7124)×TM-1 BC1 population, 17 of the 19 linkage groups were combined and anchored to 12 chromosomes (sub-genomes). Of these groups, four morphological marker genes in T586 had been mapped into the molecular linkage map. Meanwhile, three quantitative trait loci for lint percentage were tagged and mapped separately on the A03 linkage group and chromosome 6.(Author for correspondence.Tel (Fax): 025 8439 5307; E-mail: cotton@njau.edu.cn)

Key words: genetic linkage, map association, morphological markers, quantitative trait locus tagging, upland cotton.

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