文献类型： 外文期刊
作者： Sun, Yang 1 ; Xiao, Wenqing 1 ; Wang, Qing-nan 1 ; Wang, Jing 1 ; Kong, Xiang-dong 4 ; Ma, Wen-hui 1 ; Liu, Si-xian 1 ; Ren, Ping 1 ; Xu, Li-na 3 ; Zhang, Yong-Jun 2 ;
作者机构： 1.Anhui Normal Univ, Coll Life Sci, Key Lab Conservat & Use Important Biol Resources A, Anhui Prov Key Lab Mol Enzymol & Mech Major Dis, Wuhu 241000, Anhui, Peoples R China
2.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
3.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei 230031, Peoples R China
4.Zhejiang Univ, Inst Bioinformat, Coll Agr & Biotechnol, Hangzhou, Peoples R China
关键词： Terpene synthases; Pangenome; Positive selection; Structural variation; Atypical; Ostrinia furnacalis
期刊名称：BMC GENOMICS （ 影响因子：4.4； 五年影响因子：4.7 ）
ISSN： 1471-2164
年卷期： 2023 年 24 卷 1 期
页码：
收录情况： SCI
摘要： Terpenoids are important compounds associated with the pest and herbivore resistance mechanisms of plants; consequently, it is essential to identify and explore terpene synthase (TPS) genes in maize. In the present study, we identified 31 TPS genes based on a pan-genome of 26 high-quality maize genomes containing 20 core genes (present in all 26 lines), seven dispensable genes (present in 2 to 23 lines), three near-core genes (present in 24 to 25 lines), and one private gene (present in only 1 line). Evaluation of ka/ks values of TPS in 26 varieties revealed that TPS25 was subjected to positive selection in some varieties. Six ZmTPS had ka/ks values less than 1, indicating that they were subjected to purifying selection. In 26 genomes, significant differences were observed in ZmTPS25 expression between genes affected by structural variation (SV) and those not affected by SV. In some varieties, SV altered the conserved structural domains resulting in a considerable number of atypical genes. The analysis of RNA-seq data of maize Ostrinia furnacalis feeding revealed 10 differentially expressed ZmTPS, 9 of which were core genes. However, many atypical genes for these responsive genes were identified in several genomes. These findings provide a novel resource for functional studies of ZmTPS.
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