Cloning and Bioinformatics Analysis of GhArfGAP in Cotton (Gossypium hirsutum) Boll Abscission Layer With Ethylene Treatment
文献类型： 外文期刊
作者： Chen, Long 1 ; Liu, AnFeng 1 ; Guo, ZiWen 1 ; Jiang, Hui 1 ; Luo, Ling 1 ; Gao, JunShan 1 ; Li, DaHui 1 ; Ye, SiHong 2 ; Guo, Ning 1 ;
作者机构： 1.Anhui Agr Univ, Sch Life Sci, Hefei, Peoples R China
2.Anhui Acad Agr Sci, Cotton Res Inst, Hefei, Peoples R China
关键词： upland cotton; abscission zone; GhArfGAP; bioinformatics; Golgi apparatus
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： With the continuous growth of the human population, the demand for fiber is also rising sharply. As one of the main fiber plants available globally, cotton fiber yield (Gossypium hirsutum) is affected by boll abscission, which is related to the formation of the abscission layer. Therefore, we explored the formation of the abscission layer in cotton. The formation of the abscission layer in the cotton boll stalk was promoted by exogenous ethylene. It was found that both the number of the Golgi apparatus and the number of stacking layers increased in the dissociated cells. The GhArfGAP gene family in cotton was screened by the bioinformatics method, and the species and evolutionary relationship of the GhArfGAP gene family were analyzed. qRT-PCR showed that GhArfGAP13, GhArfGAP15, GhArfGAP25, and GhArfGAP34 in cotton had spatiotemporal-specific expression patterns. Subcellular localization suggested that GhArfGAP25 played a role in the Golgi apparatus. The expression of GhArfGAP25 in transgenic Arabidopsis thaliana is increased in the roots, stems, and leaves. Finally, we found that ethylene could induce the formation of the abscission layer in cotton. GhArfGAP13, GhArfGAP15, GhArfGAP25, and GhArfGAP34 might regulate the changes in the Golgi apparatus in the abscission layer. Taken together, the findings provide new ideas for the study of the formation of cotton abscission.
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