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Genome-Wide Association Study Reveals PC4 as the Candidate Gene for Thermal Tolerance in Bay Scallop (Argopecten irradians irradians)
被引:11
|作者:
Zhu, Xinghai
[1
]
Liu, Pingping
[1
]
Hou, Xiujiang
[1
]
Zhang, Junhao
[1
]
Lv, Jia
[1
]
Lu, Wei
[1
]
Zeng, Qifan
[1
]
Huang, Xiaoting
[1
,2
]
Xing, Qiang
[1
,2
]
Bao, Zhenmin
[1
,2
]
机构:
[1] Ocean Univ China, Coll Marine Life Sci, MOE Key Lab Marine Genet & Breeding, Qingdao, Peoples R China
[2] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China
基金:
中国国家自然科学基金;
关键词:
genome-wide association study;
Argopecten irradians irradians;
thermal tolerance;
single nucleotide polymorphism;
transcriptional coactivator p15;
CHLAMYS-FARRERI JONES;
OXIDATIVE STRESS;
BINDING ACTIVITY;
NODIPECTEN-SUBNODOSUS;
OPTIMUM TEMPERATURE;
SALINITY TOLERANCE;
IMMUNE-RESPONSES;
HEAT TOLERANCE;
PACIFIC OYSTER;
YESSO SCALLOP;
D O I:
10.3389/fgene.2021.650045
中图分类号:
Q3 [遗传学];
学科分类号:
071007 ;
090102 ;
摘要:
The increasing sea temperature caused by global warming has resulted in severe mortalities in maricultural scallops. Therefore, improving thermal tolerance has become an active research area in the scallop farming industry. Bay scallop (Argopecten irradians irradians) was introduced into China in 1982 and has developed into a vast aquaculture industry in northern China. To date, genetic studies on thermal tolerance in bay scallops are limited, and no systematic screening of thermal tolerance-related loci or genes has been conducted in this species. In the present study, we conducted a genome-wide association study (GWAS) for thermal tolerance using the Arrhenius break temperature (ABT) indicators of 435 bay scallops and 38,011 single nucleotide polymorphism (SNP) markers. The GWAS identified 1,906 significant thermal tolerance-associated SNPs located in 16 chromosomes of bay scallop. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses showed that 638 genes were enriched in 42 GO terms, while 549 annotated genes were enriched in aggregation pathways. Additionally, the SNP (15-5091-20379557-1) with the lowest P value was located in the transcriptional coactivator p15 (PC4) gene, which is involved in regulating DNA damage repair and stabilizing genome functions. Further analysis in another population identified two new thermal tolerance-associated SNPs in the first coding sequence of PC4 in bay scallops (AiPC4). Moreover, AiPC4 expression levels were significantly correlated (r = 0.675-0.962; P < 0.05) with the ABT values of the examined bay scallops. Our data suggest that AiPC4 might be a positive regulator of thermal tolerance and a potential candidate gene for molecular breeding in bay scallop aiming at thermal tolerance improvement.
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页数:14
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