文献类型： 外文期刊
作者： Xiong, Luling 1 ; Huang, Yingyong 1 ; Liu, Zupei 1 ; Li, Chen 2 ; Yu, Hang 2 ; Shahid, Muhammad Qasim 1 ; Lin, Yanhui 3 ; Qiao, Xiaoyi 1 ; Xiao, Junyi 1 ; Gray, Julie E. 4 ; Jin, Jing 1 ;
作者机构： 1.South China Agr Univ, Coll Agr, Guangdong Prov Key Lab Plant Mol Breeding, Guangzhou 510642, Peoples R China
2.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China
3.Minist Agr, Hainan Acad Agr Sci, Hainan Sci Res Stn Crop Gene Resource & Germplasm, Inst Food Crops,Hainan Key Lab Crop Genet & Breed, Haikou 571100, Hainan, Peoples R China
4.Univ Sheffield, Dept Mol Biol & Biotechnol, Sheffield S10 2TN, S Yorkshire, England
期刊名称：PLANT PHYSIOLOGY （ 影响因子：8.005； 五年影响因子：9.115 ）
ISSN： 0032-0889
年卷期：
页码：
收录情况： SCI
摘要： A kind of peptide and its homologs regulate awn development during rice domestication. The EPIDERMAL PATTERNING FACTOR (EPF) and EPF-LIKE (EPFL) family of small secreted peptides act to regulate many aspects of plant growth and development; however, their functions are not widely characterized in rice (Oryza sativa). Here, we used clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) technology to individually knockout each of 11 EPF/EPFL genes in the rice cultivar Kasalath. Loss of function of most OsEPF/EPFL genes generated no obvious phenotype alteration, while disruption of OsEPFL2 in Kasalath caused a short or no awn phenotype and reduced grain size. OsEPFL2 is strongly expressed in the young panicle, consistent with a role in regulating awn and grain development. Haplotype analysis indicated that OsEPFL2 can be classified into six major haplotypes. Nucleotide diversity and genetic differentiation analyses suggested that OsEPFL2 was positively selected during the domestication of rice. Our work to systematically investigate the function of EPF/EPFL peptides demonstrates that different members of the same gene family have been independently selected for their ability to regulate a similar biological function and provides perspective on rice domestication.
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