caa a22 4500 475795490 CHVBK 20180406123723.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1007/s001220050054 doi (NATIONALLICENCE)springer-10.1007/s001220050054 QTL analysis of leaf morphology in tetraploid Gossypium (cotton) [Elektronische Daten] [C. Jiang, R. J. Wright, S. S. Woo, T. A. DelMonte, A. H. Paterson] Abstract : Molecular markers were used to map and characterize quantitative trait loci (QTLs) determining cotton leaf morphology and other traits, in 180 F2 plants from an interspecific cross between a Gossypium hirsutum genotype carrying four morphological mutants, and a wild-type Gossypium barbadense. The prominent effects of a single region of chromosome 15, presumably the classical ”Okra-leaf” locus, were modified by QTLs on several other chromosomes affecting leaf size and shape. For most traits, each parent contained some alleles with positive effects and others with negative effects, suggesting a large potential for adapting leaf size and shape to the needs of particular production regimes. Twenty one QTLs/loci were found for the morphological traits at LOD≥3.0 and P≤0.001, among which 14 (63.6%) mapped to D-subgenome chromosomes. Forty one more possible QTLs/loci were suggested with 2.0≤LOD<3.0 and 0.001<P≤0.01. Among all of the 62 possible QTLs (found at LOD≥2.0 and P≤0.01) for the 14 morphological traits in this study, 38 (61.3%) mapped to D-subgenome chromosomes. This reinforces the findings of several other studies in suggesting that the D-subgenome of tetraploid cotton has been subject to a relatively greater rate of evolution than the A-subgenome, subsequent to polyploid formation. Springer-Verlag Berlin Heidelberg, 2000 Key words DNA markers nationallicence Quantitative trait loci (QTLs) nationallicence Morphological traits nationallicence Okra leaf nationallicence Polyploid formation nationallicence Jiang C. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut Wright R. J. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut Woo S. S. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut DelMonte T. A. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut Paterson A. H. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut https://doi.org/10.1007/s001220050054 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001220050054 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jiang C. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut NATIONALLICENCE 700 1- Wright R. J. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut NATIONALLICENCE 700 1- Woo S. S. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut NATIONALLICENCE 700 1- DelMonte T. A. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut NATIONALLICENCE 700 1- Paterson A. H. Plant Genome Mapping Laboratory, Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843-2474, USA, US aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer