Functional Similarity and Difference among Bra-MIR319 Family in Plant Development

被引：5
作者：
Hu, Ziwei [1 ,2 ]
Liu, Tingling [1 ,2 ]
Cao, Jiashu [1 ,2 ,3 ]
机构：
[1] Zhejiang Univ, Inst Vegetable Sci, Lab Cell & Mol Biol, Hangzhou 310058, Peoples R China
[2] Minist Agr, Key Lab Hort Plant Growth Dev & Qual Improvement, Hangzhou 310058, Peoples R China
[3] Zhejiang Prov Key Lab Hort Plant Integrat Biol, Hangzhou 310058, Peoples R China
来源：
GENES | 2019年 / 10卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Brassica campestris; Bra-miR319; family; leaf and petal morphogenesis; pollen development; TCP TRANSCRIPTION FACTORS; GENE-EXPRESSION; ARABIDOPSIS; EVOLUTION; POLLEN; GENOME; CONSERVATION; MICRORNAS; MIR319; GROWTH;
D O I：
10.3390/genes10120952
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
miR319 was the first plant miRNA discovered via forward genetic mutation screening. In this study, we found that miR319 family members had similar sequences but different expression patterns in Brassica campestris and Arabidopsis thaliana. RT-PCR analysis revealed that Bra-MIR319a and Bra-MIR319c had similar expression patterns and were widely expressed in plant development, whereas Bra-MIR319b could only be detected in stems. The overexpression of each Bra-MIR319 family member in Arabidopsis could inhibit cell division and function in leaf and petal morphogenesis. Bra-miR319a formed a new regulatory relationship after whole genome triplication, and Bra-MIR319a overexpressing in Arabidopsis led to the degradation of pollen content and affected the formation of intine, thereby causing pollen abortion. Our results suggest that Bra-MIR319 family members have functional similarity and difference in plant development.
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页数：10
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