首页|Genome-wide and candidate gene association studies identify BnPAP17 as conferring the utilization of organic phosphorus in oilseed rape
Genome-wide and candidate gene association studies identify BnPAP17 as conferring the utilization of organic phosphorus in oilseed rape
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Phosphorus(P)is essential for living plants,and P deficiency is one of the key factors limiting the yield in rapeseed production worldwide.As the most important organ for plants,root morphology traits(RMTs)play a key role in P absorption.To investigate the genetic variability of RMT under low P availability,we dissected the genetic structure of RMTs by genome-wide association studies(GWAS),linkage mapping and candidate gene association studies(CGAS).A total of 52 suggestive loci were associated with RMTs under P stress conditions in 405 oilseed rape accessions.The purple acid phosphatase gene BnPAP17 was found to control the lateral root number(LRN)and root dry weight(RDW)under low P stress.The expression of BnPAP17 was increased in shoot tissue in P-efficient cultivars compared to root tissue and P-inefficient cultivars in response to low P stress.Moreover,the haplotype of BnPAP17Hap3 was detected for the selective breeding of P efficiency in oilseed rape.Over-expression of the BnPAP17Hap3 could promote the shoot and root growth with enhanced tolerance to low P stress and organic phosphorus(Po)utilization in oilseed rape.Collectively,these findings increase our understanding of the mechanisms underlying BnPAP17-mediated low P stress tolerance in oilseed rape.
genome-wide association studies(GWAS)root morphology traits(RMTs)organic phosphorus(Po)oilseed rapeBnPAP17
Ping Xu、Hao Li、Haiyuan Li、Ge Zhao、Shengjie Dai、Xiaoyu Cui、Zhenning Liu、Lei Shi、Xiaohua Wang
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College of Agriculture and Forestry Science,Linyi University,Linyi 27600,China
National Key Laboratory of Crop Genetic Improvement/Microelement Research Centre/Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River),Ministry of Agriculture and Rural Affairs/Huazhong Agricultural University,Wuhan 430070,China
Ping Xu,Hao Li,Haiyuan Li,et al.Genome-wide and candidate gene association studies identify BnPAP17 as conferring the utilization of organic phosphorus in oilseed rape[J].农业科学学报(英文),2024,23(4):1134-1149.DOI:10.1016/j.jia.2023.05.002.
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