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1.黑龙江八一农垦大学农学院,黑龙江 大庆,163319
2.黑龙江八一农垦大学园林园艺学院,黑龙江 大庆,163319
Received:09 December 2025,
Published:25 August 2026
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李梓琪,刘新宇,王嘉珩等.大豆PAH基因家族鉴定及其非生物胁迫和激素处理响应分析[J].中国油料作物学报,2026,48(04):47-57.
LI Zi-qi,LIU Xin-yu,WANG Jia-heng,et al.Identification of soybean PAH gene family and its response to abiotic stress and hormone treatments[J].Chinese Journal of Oil Crop Sciences,2026,48(04):47-57.
李梓琪,刘新宇,王嘉珩等.大豆PAH基因家族鉴定及其非生物胁迫和激素处理响应分析[J].中国油料作物学报,2026,48(04):47-57. DOI: 10.19802/j.issn.1007-9084.2025278.
LI Zi-qi,LIU Xin-yu,WANG Jia-heng,et al.Identification of soybean PAH gene family and its response to abiotic stress and hormone treatments[J].Chinese Journal of Oil Crop Sciences,2026,48(04):47-57. DOI: 10.19802/j.issn.1007-9084.2025278.
磷脂酸磷酸水解酶(phosphatidic acid hydrolase
PAH)是催化磷脂酸去磷酸化产生二酰基甘油(diacylglycerol
DAG)的关键酶。为挖掘大豆PAH家族基因的功能,本研究利用全基因组鉴定到7个
GmPAH
基因,根据进化关系分为Cluster Ⅰ和Cluster Ⅱ亚家族;染色体定位显示7个
GmPAH
基因均匀分布在3、4、6、10、13、17和19染色体上;编码的氨基酸长度在183~917个氨基酸
残基,分子量在58 857.39 Da~101 832.68 Da;实时荧光定量PCR结果表明
GmPAH
的表达受低温、甘露醇和茉莉酸胁迫的影响,其中在低温胁迫下,
GmPAH1、GmPAH3、GmPAH4
和
GmPAH7
基因显著上调;除
GmPAH5
和
GmPAH6
外,其他成员在茉莉酸处理下显著上调表达;
GmPAH1、GmPAH2、GmPAH3、GmPAH4
和
GmPAH7
基因在甘露醇胁迫后下调表达。以上结果表明
GmPAH
基因广泛参与大豆非生物胁迫响应和激素响应。
Phosphatidic acid hydrolase (PAH) is a key enzyme that catalyzes the dephosphorylation of phosphatidic acid to diacylglycerol. To explore the potential functions of PAH family genes in soybean
7
GmPAH
genes were identified by genome-wide identification
which were divided into Cluster Ⅰ and Cluster Ⅱ subfamilies according to the evolutionary relationship. Chromosome mapping showed that 7
GmPAH
genes were evenly distributed on chromosomes 3
4
6
10
13
17 and 19. Their coding length are 183 to 917 amino acids
with molecular weight 58 857.39 Da to 101 832.68 Da. Real-time fluorescence quantitative PCR results showed that
GmPAH
expression was affected by low temperature
mannitol and jasmonate acid stress. Among them
GmPAH1
3
4
and
7
genes were significantly up-regulated under low temperature stress. Except for
GmPAH5
and
GmPAH6
other members were significantly up-regulated under jasmonic acid treatment.
GmPAH1
2
3
4
and
7
were down-regulated after mannitol stress. In conclusion
GmPAH
gene is widely involved in soybean abiotic stress response and hormone response.
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