文献类型： 外文期刊
作者： Xie, Huabin 1 ; Lin, Chunzi 1 ; Lu, Wenyu 1 ; Han, Zhikai 1 ; Wei, Danhong 1 ; Huo, Xing 2 ; Li, Tianjiao 3 ; Zhang, Jian 1 ; He, Yongqiang 3 ; Chen, Chun 1 ; Wang, Hui 1 ; Guo, Tao 1 ; Wang, Jiafeng 1 ;
作者机构： 1.South China Agr Univ, Natl Engn Res Ctr Plant Space Breeding, Guangdong Key Lab Plant Mol Breeding, Guangzhou 510642, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Rice Res Inst, Guangdong Key Lab New Technol Rice Breeding, Guangdong Rice Engn Lab, Guangzhou 510640, Guangdong, Peoples R China
3.Guangxi Univ, Coll Agr, Guangxi Key Lab Agroenvironm & Agroprod Safety, Nanning 530004, Guangxi, Peoples R China
关键词： Rice; Bacterial leaf streak; Xanthomonas oryzae pv. oryzicola; Genome-wide association study; RNA sequencing
期刊名称：CROP JOURNAL （ 影响因子：6.6； 五年影响因子：6.5 ）
ISSN： 2095-5421
年卷期： 2023 年 11 卷 6 期
页码：
收录情况： SCI
摘要： Bacterial leaf streak (BLS), caused by Xanthomonas oryzae pv. oryzicola (Xoc), isa bacterial disease affecting rice production in Asia and Africa, whose severity is expected to increase with climate change. Identification of new quantitative-trait loci (QTL) or resistance genes for BLS resistance is essential for developing resistant rice. A genome-wide association study to identify QTL associated with BLS resistance was conducted using phenotypic and genotypic data from 429 rice accessions. Of 47 QTL identified, 45 were novel and two co-localized with previously reported QTL or genes conferring BLS resistance. qBLS6.2 on chromosome 6 explained the greatest phenotypic variation. Combined analysis of differential expression and annotations of predicted genes near qBLS6.2 based on haplotype and disease phenotype identified OsBLS6.2 (LOC_Os06g02960) as a candidate gene for qBLS6.2. OsBLS6.2 knockout plants showed higher resis-tance to Xoc than wild-type plants. Many other candidate genes for resistance to Xoc were identified. (c) 2023 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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