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The cytoplasmic effect on the floral morphology in upland cotton
NIE Hushuai 1,HUA Jinping 2 *
1.College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193;College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193
2.
*Correspondence author
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Funding: National Natural Science Foundation of China (No.31671741)
Opened online: 2 December 2020
Accepted by: none
Citation: NIE Hushuai,HUA Jinping.The cytoplasmic effect on the floral morphology in upland cotton[OL]. [ 2 December 2020] http://en.paper.edu.cn/en_releasepaper/content/4753090
 
 
The genetic incompatibilities between nucleus and cytoplasm affect various important traits, such as fertile, yield, and cause extremely complex morphological variation of floral organs. Alloplasm directly regulates the fertility of plants and may result in male sterility. A set of alloplasmic lines, which derived from 12 cytoplasm backcrossing with 3 upland cotton inbred-lines for several successive generations, were used to investigate the effects of nuclear, cytoplasm, and nuclear-cytoplasmic interaction (NCI) on the morphology of flower organ. Observational data of floral traits, include anther numbers, bud length, bud width and stigma length, were measured based on repeat experiment and the analysis of variance (ANOVA) was performed to detect the differences. The results showed that the number of cotton anther was mainly determined by cytoplasm and environment, however, not significantly affected by nucleus. The length and width of bud were determined by nucleus, cytoplasm and nucleus-cytoplasmic interaction. The length of stigma was predominantly affected by nucleus and nucleus-cytoplasmic interaction. The results help us to understand more in genetic effects of cytoplasm.
Keywords:cotton; nucleus; alloplasm; flower organ morphology
 
 
 

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