Genetic analysis of a novel fiber developmental mutant ligon-lintless-Sd (Li-Sd) in Gossypium hirsutum L.
文献类型： 外文期刊
作者： Wang, Yongcui 1 ; Jiang, Hui 3 ; Yuan, Yanchao 1 ; Chai, Qichao 3 ; Gao, Mingwei 3 ; Wang, Xiuli 3 ; Chen, Ying 3 ; Wang, Jiabao 3 ; Zhang, Chao 3 ; Zheng, Jinxiu 2 ; Sui, Na 2 ; Song, Xianliang 1 ; Zhao, Junsheng 2 ;
作者机构： 1.Shandong Agr Univ, Coll Agron, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China
2.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Shandong, Peoples R China
3.Shandong Cotton Res Ctr, Jinan 250100, Shandong, Peoples R China
关键词： Li-Sd; Mutant; Fiber; Allelic analysis; Cotton
期刊名称：GENETIC RESOURCES AND CROP EVOLUTION （ 影响因子：1.524； 五年影响因子：1.713 ）
ISSN： 0925-9864
年卷期： 2019 年 66 卷 5 期
页码：
收录情况： SCI
摘要： Cotton fibers are single-celled trichomes that differ from the ovule epidermis. As such, they are considered a model system for studying cell elongation and cell wall biogenesis. Fiber development of mutants provide novel materials for dissecting the genetic mechanisms underlying the process. Herein, we described the characteristics and genetics of a new super-short fiber mutant, Ligon-lintless-Sd (Li-Sd), in upland cotton. The Li-Sd mutant possesses fuzz, super-short fibers (6-7mm), normal leaves, and is relatively short plant height. Scanning electron microscopy array revealed no difference in fiber initiation between Li-Sd and TM-1. Microscopic observations indicated early fiber elongation, which was terminated at 8-13days post anthesis. The results of genetic analysis revealed that short fiber phenotype was controlled by a single incomplete dominant nuclear gene, named Li-Sd. The results ofallelicanalysis in Gossypium hirsutum L. background indicated that Li-Sd is non-allelic to the previously described shorter fiber mutants Li-1, Li-2, and is therefore a novel short-fiber mutant gene. The phenotypic characteristics and genetic analyses provide a useful basis for further mapping of this gene and dissecting its molecular mechanisms of fiber elongation and the pleiotropy with plant height in cotton.
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