Research Progress on the Mendelian Genetic Analysis and Molecular Mapping of Morphological Qualitative Traits in Cotton |
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| Authors: | Zang Xinshan Geng Yanhui Pei Wenfeng Wu Man Li Xingli Zhang Jinfa Yu Jiwen |
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| Institution: | 1. State Key Laboratory of Cotton Biology/Institute of Cotton Research of the Chinese Academy of Agricultural Sciences/Key Laboratory of Cotton Genetic Improvement, Ministry of Agriculture and Rural Affairs, Anyang, Henan 455000, China; 2. New Mexico State University, Las Cruces, New Mexico 88003, USA |
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| Abstract: | Genetic analysis and molecular mapping of qualitative traits are important tools in cotton breeding. Research on cotton qualitative traits has been reported since the early 1900s. Rapid advances in cotton genomics and molecular mapping over the past several years have facilitated the mapping and cloning of important qualitative trait genes in cotton. Although most of the 101 genes and alleles related to cotton morphological qualitative traits have not been mapped to linkage groups or chromosomes, several genes have been cloned and identified via map-based cloning. This paper describes research progress on the genetic and linkage analysis, molecular mapping, and candidate gene cloning of eight major types of morphological qualitative traits: plant color, leaf color, leaf shape, bract, flower, nectary, gland, and fiber characteristics. The presented information lays a foundation for studying the molecular basis of qualitative traits, favorable gene-based transfer, and gene pyramiding in cotton. |
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| Keywords: | cotton qualitative trait chromosomal location molecular markers gene cloning |
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