Combined BSA-Seq and RNA-Seq Analysis to Identify Candidate Genes Associated with Aluminum Toxicity in Rapeseed (Brassica napus L.)
文献类型： 外文期刊
作者： Zhou, Huiwen 1 ; Yu, Paolan 2 ; Wu, Lanhua 1 ; Han, Depeng 2 ; Wu, Yang 1 ; Zheng, Wei 2 ; Zhou, Qinghong 3 ; Xiao, Xiaojun 2 ;
作者机构： 1.Jiujiang Univ, Inst Jiangxi Oil Tea Camellia, Coll Pharm & Life Sci, Jiujiang 332005, Peoples R China
2.Jiangxi Inst Red Soil & Germplasm Resources, Key Lab Arable Land Improvement & Qual Improvement, Nanchang 330046, Peoples R China
3.Jiangxi Agr Univ, Agron Coll, Key Lab Crop Physiol Ecol & Genet Breeding, Minist Educ, Nanchang 330045, Peoples R China
关键词： Brassica napus; aluminum resistance; BSA-seq; transcriptome; candidate genes
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 20 期
页码：
收录情况： SCI
摘要： Exchangeable aluminum (Al) ions released from acidic soils with pH < 5.5 inhibit root elongation of crops, ultimately leading to yield reduced. It is necessary to identify the quantitative trait locus (QTLs) and candidate genes that confer toxicity resistance to understand the mechanism and improve tolerance of rapeseed. In this study, an F-2 segregating population was derived from a cross between Al-tolerance inbred line FDH188 (R178) and -sensitive inbred line FDH152 (S169), and the F-2:3 were used as materials to map QTLs associated with the relative elongation of taproot (RET) under Al toxicity stress. Based on bulked segregant analysis sequencing (BSA-seq), three QTLs (qAT-A07-1, qAT-A07-2, and qAT-A09-1) were detected as significantly associated with RET, and 656 candidate genes were screened. By combined BSA and RNA-seq analysis, 55 candidate genes showed differentially expressed, including genes encoding ABC transporter G (ABCG), zinc finger protein, NAC, ethylene-responsive transcription factor (ERF), etc. These genes were probably positive factors in coping with Al toxicity stress in rapeseed. This study provides new insight into exploring the QTLs and candidate genes' response to Al toxicity stress by combined BSA-seq and RNA-seq and is helpful to further research on the mechanism of Al resistance in rapeseed.
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