文献类型: 外文期刊
作者: Zheng, Xiaoming 1 ; Zhong, Limei 4 ; Pang, Hongbo 5 ; Wen, Siyu 3 ; Li, Fei 1 ; Lou, Danjing 1 ; Ge, Jinyue 1 ; Fan, Weiya 1 ; Wang, Tianyi 6 ; Han, Zhenyun 1 ; Qiao, Weihua 1 ; Pan, Xiaowu 7 ; Zhu, Yebao 8 ; Wang, Jilin 9 ; Tang, Cuifeng 10 ; Wang, Xinhua 11 ; Zhang, Jing 12 ; Xu, Zhijian 14 ; Kim, Sung Ryul 2 ; Kohli, Ajay 2 ; Ye, Guoyou 2 ; Olsen, Kenneth M. 16 ; Fang, Wei 1 ; Yang, Qingwen 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China
2.Int Rice Res Inst, DAPO box 7777, Makati, Metro Manila, Philippines
3.Chinese Acad Agr Sci, Sanya Natl Res Inst Breeding Hainan, Beijing, Peoples R China
4.Nanchang Univ, Coll life Sci, Nanchang, Peoples R China
5.Shenyang Normal Univ, Coll Life Sci, Shenyang, Peoples R China
6.Smartgen Technol Inst, Tianjin, Peoples R China
7.Hunan Acad Agr Sci, Rice Res Inst, Changsha, Peoples R China
8.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou, Peoples R China
9.Jiangxi Acad Agr Sci, Rice Res Inst, Nanchang, Peoples R China
10.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming, Peoples R China
11.Hainan Acad Agr Sci, Inst Food Crops, Haikou, Peoples R China
12.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou, Peoples R China
13.Guangdong Prov Key Lab New Technol Rice Breeding, Guangzhou, Peoples R China
14.Guangxi Acad Agr Sci, Rice Res Inst, Nanning, Peoples R China
15.Kyung Hee Univ, Crop Biotech Inst & Dept Genet Engn, Yongin 446701, South Korea
16.Washington Univ, Biol Dept, Campus Box 1137, St Louis, MO 63130 USA
关键词: Structure variation; Oryza; Domestication; Phenotype; Association
期刊名称:BMC BIOLOGY ( 影响因子:5.4; 五年影响因子:7.1 )
ISSN:
年卷期: 2023 年 21 卷 1 期
页码:
收录情况: SCI
摘要: BackgroundDNA mutations of diverse types provide the raw material required for phenotypic variation and evolution. In the case of crop species, previous research aimed to elucidate the changing patterns of repetitive sequences, single-nucleotide polymorphisms (SNPs), and small InDels during domestication to explain morphological evolution and adaptation to different environments. Additionally, structural variations (SVs) encompassing larger stretches of DNA are more likely to alter gene expression levels leading to phenotypic variation affecting plant phenotypes and stress resistance. Previous studies on SVs in rice were hampered by reliance on short-read sequencing limiting the quantity and quality of SV identification, while SV data are currently only available for cultivated rice, with wild rice largely uncharacterized. Here, we generated two genome assemblies for O. rufipogon using long-read sequencing and provide insights on the evolutionary pattern and effect of SVs on morphological traits during rice domestication.ResultsIn this study, we identified 318,589 SVs in cultivated and wild rice populations through a comprehensive analysis of 13 high-quality rice genomes and found that wild rice genomes contain 49% of unique SVs and an average of 1.76% of genes were lost during rice domestication. These SVs were further genotyped for 649 rice accessions, their evolutionary pattern during rice domestication and potential association with the diversity of important agronomic traits were examined. Genome-wide association studies between these SVs and nine agronomic traits identified 413 candidate causal variants, which together affect 361 genes. An 824-bp deletion in japonica rice, which encodes a serine carboxypeptidase family protein, is shown to be associated with grain length.ConclusionsWe provide relatively accurate and complete SV datasets for cultivated and wild rice accessions, especially in TE-rich regions, by comparing long-read sequencing data for 13 representative varieties. The integrated rice SV map and the identified candidate genes and variants represent valuable resources for future genomic research and breeding in rice.
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