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QTL alleles for improved fiber quality from a wild Hawaiian cotton, Gossypium tomentosum

Theoretical and applied genetics, 2011-11, Vol.123 (7), p.1075-1088 [Peer Reviewed Journal]

Springer-Verlag 2011 ;2015 INIST-CNRS ;COPYRIGHT 2011 Springer ;ISSN: 0040-5752 ;EISSN: 1432-2242 ;DOI: 10.1007/s00122-011-1649-x ;PMID: 21735234 ;CODEN: THAGA6

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Title:
QTL alleles for improved fiber quality from a wild Hawaiian cotton, Gossypium tomentosum
Author: Zhang, Zhengsheng ; Rong, Junkang ; Waghmare, Vijay N. ; Chee, Peng W. ; May, O. Lloyd ; Wright, Robert J. ; Gannaway, John R. ; Paterson, Andrew H.
Subjects: Agriculture ; Alleles ; Allelomorphism ; Biochemistry ; Biological and medical sciences ; Biomedical and Life Sciences ; Biotechnology ; Botanical research ; Classical genetics, quantitative genetics, hybrids ; Cotton ; Crosses, Genetic ; Cultivars ; DNA - genetics ; Fundamental and applied biological sciences. Psychology ; Genes, Plant ; Genetic aspects ; Genetic Markers - genetics ; Genetic research ; Genetics of eukaryotes. Biological and molecular evolution ; Genome ; Genomes ; Genotype ; Genotype & phenotype ; Germplasm ; Gossypium ; Gossypium - genetics ; Gossypium - metabolism ; Gossypium hirsutum ; Homozygote ; Life Sciences ; Models, Genetic ; Models, Statistical ; Original Paper ; Phenotype ; Physiological aspects ; Plant Biochemistry ; Plant Breeding/Biotechnology ; Plant Genetics and Genomics ; Polymorphism, Restriction Fragment Length ; Pteridophyta, spermatophyta ; Quantitative Trait Loci ; Seeds ; Software ; Soil sciences ; Vegetals
Is Part Of: Theoretical and applied genetics, 2011-11, Vol.123 (7), p.1075-1088
Description: Seventeen backcross-self families from crosses between two Gossypium hirsutum recurrent parent lines (CA3084, CA3093) and G. tomentosum were used to identify quantitative trait loci (QTLs) controlling fiber quality traits. A total of 28 QTLs for fiber quality traits were identified ( P < 0.001), including four for fiber elongation, eight for fiber fineness, four for fiber length, four for fiber strength, six for fiber uniformity, one for boll weight, and one for boll number. Three statistically significant marker–trait associations for lint yield were found in a single environment, but need further validation. Two-way analysis of variance revealed one locus with significant genotype × family interaction ( P < 0.001) for fiber strength and a second locus with significant genotype × environment interaction ( P < 0.001) in the CA3084 background, and two loci with significant genotype × background interaction ( P < 0.001) for the 28 common markers segregating in both of the two recurrent backgrounds. Co-location of many QTLs for fiber quality traits partially explained correlations among these traits. Some G. tomentosum alleles were associated with multiple favorable effects, offering the possibility of rapid genetic gain by introgression. Many G. tomentosum alleles were recalcitrant to homozygosity, suggesting that they might be most effectively deployed in hybrid cottons. DNA markers linked to G. tomentosum QTLs identified in the present study promise to assist breeders in transferring and maintaining valuable traits from this exotic source during Upland cotton cultivar development. This study also adds further evidence to prior studies indicating that the majority of genetic variation associated with fiber quality in tetraploid cotton traces to the D-subgenome from a diploid ancestor that does not produce spinnable fiber.
Publisher: Berlin/Heidelberg: Springer-Verlag
Language: English
Identifier: ISSN: 0040-5752
EISSN: 1432-2242
DOI: 10.1007/s00122-011-1649-x
PMID: 21735234
CODEN: THAGA6
Source: MEDLINE
Alma/SFX Local Collection
ProQuest Central

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QTL alleles for improved fiber quality from a wild Hawaiian cotton, Gossypium tomentosum

Springer-Verlag 2011 ;2015 INIST-CNRS ;COPYRIGHT 2011 Springer ;ISSN: 0040-5752 ;EISSN: 1432-2242 ;DOI: 10.1007/s00122-011-1649-x ;PMID: 21735234 ;CODEN: THAGA6

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