title: A Genetic Map Between Gossypium hirsutum and the Brazilian Endemic G. mustelinum and Its Application to QTL Mapping.
abstract: Among the seven tetraploid cotton species, little is known about transmission genetics and genome organization in Gossypium mustelinum, the species most distant from the source of most cultivated cotton, G. hirsutum In this research, an F2 population was developed from an interspecific cross between G. hirsutum and G. mustelinum (HM). A genetic linkage map was constructed mainly using simple sequence repeat (SSRs) and restriction fragment length polymorphism (RFLP) DNA markers. The arrangements of most genetic loci along the HM chromosomes were identical to those of other tetraploid cotton species. However, both major and minor structural rearrangements were also observed, for which we propose a parsimony-based model for structural divergence of tetraploid cottons from common ancestors. Sequences of mapped markers were used for alignment with the 26 scaffolds of the G. hirsutum draft genome, and showed high consistency. Quantitative trait locus (QTL) mapping of fiber elongation in advanced backcross populations derived from the same parents demonstrated the value of the HM map. The HM map will serve as a valuable resource for QTL mapping and introgression of G. mustelinum alleles into G. hirsutum, and help clarify evolutionary relationships between the tetraploid cotton genomes.
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602 School of Life Sciences, Nantong University, Nantong, Jiangsu 226019, China Department of Crop and Soil Sciences, University of Georgia, Tifton, Georgia 31793.
authors.forename: Baohua
authors.identifier: 0000-0001-7449-8292
authors.initials: B
authors.lastname: Wang
authors.affiliation: Department of Crop and Soil Sciences, University of Georgia, Tifton, Georgia 31793.
authors.forename: Limei
authors.initials: L
authors.lastname: Liu
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602.
authors.forename: Dong
authors.initials: D
authors.lastname: Zhang
authors.affiliation: School of Life Sciences, Nantong University, Nantong, Jiangsu 226019, China Department of Crop and Soil Sciences, University of Georgia, Tifton, Georgia 31793.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Zhuang
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602.
authors.forename: Hui
authors.initials: H
authors.lastname: Guo
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602.
authors.forename: Xin
authors.initials: X
authors.lastname: Qiao
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602.
authors.forename: Lijuan
authors.initials: L
authors.lastname: Wei
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602 School of Agriculture and Food Science, Zhejiang A&F University, Lin'an, Hangzhou, Zhejiang 311300, China.
authors.forename: Junkang
authors.initials: J
authors.lastname: Rong
authors.affiliation: Department of Crop and Soil Sciences, University of Georgia, Tifton, Georgia 31793.
authors.forename: O Lloyd
authors.initials: OL
authors.lastname: May
authors.affiliation: Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia 30602 paterson@uga.edu pwchee@uga.edu.
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Paterson
authors.affiliation: Department of Crop and Soil Sciences, University of Georgia, Tifton, Georgia 31793 paterson@uga.edu pwchee@uga.edu.
authors.forename: Peng W
authors.initials: PW
authors.lastname: Chee
mesh_terms: D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D003433:Crosses, Genetic; D056726:Genetic Association Studies; D008040:Genetic Linkage; D018745:Genome, Plant; D023281:Genomics / Q000379:methods; D003368:Gossypium / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D020161:Physical Chromosome Mapping; D040641:Quantitative Trait Loci; D019655:Quantitative Trait, Heritable; D057891:Tetraploidy
keywords: chromosome structural changes; colinearity; map comparison; phylogenetic context