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Genome-wide investigation and expression profiling of LOR gene family in rapeseed under salinity and ABA stress

文献类型： 外文期刊

作者： Yang, Su 1 ; Chen, Jialuo 1 ; Ding, Yonghe 1 ; Huang, Qian 2 ; Chen, Guangna 1 ; Ulhassan, Zaid 2 ; Wei, Ji'an 4 ; Wang, Jian 5 ;

作者机构： 1.China Jiliang Univ, Coll Life Sci, Key Lab Specialty Agriprod Qual & Hazard Controlli, Hangzhou, Zhejiang, Peoples R China

2.Zhejiang Univ, Inst Crop Sci, Hangzhou, Peoples R China

3.Zhejiang Univ, Zhejiang Key Lab Crop Germplasm, Hangzhou, Peoples R China

4.Mizuda Grp Co Ltd, Huzhou, Zhejiang, Peoples R China

5.Zhejiang Acad Agr Sci, Inst Vegetables, Hangzhou, Peoples R China

关键词： Brassica napus; LOR gene family; phylogenetic tree; expression profiles; abiotic stress

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： The Brassica napus (B. napus) LOR (Lurp-One-Related) gene family is a little-known gene family characterized by a conserved LOR domain in the proteins. Limited research in Arabidopsis showed that LOR family members played important roles in Hyaloperonospora parasitica (Hpa) defense. Nevertheless, there is a paucity of research investigating the role of the LOR gene family towards their responses to abiotic stresses and hormone treatments. This study encompassed a comprehensive survey of 56 LOR genes in B. napus, which is a prominent oilseed crop that holds substantial economic significance in China, Europe, and North America. Additionally, the study evaluated the expression profiles of these genes in response to salinity and ABA stress. Phylogenetic analysis showed that 56 BnLORs could be divided into 3 subgroups (8 clades) with uneven distribution on 19 chromosomes. 37 out of 56 BnLOR members have experienced segmental duplication and 5 of them have undergone tandem repeats events with strong evidence of purifying selection. Cis-regulatory elements (CREs) analysis indicated that BnLORs involved in process such as light response, hormone response, low temperature response, heat stress response, and dehydration response. The expression pattern of BnLOR family members revealed tissue specificity. RNA-Seq and qRT-PCR were used to validate BnLOR gene expression under temperature, salinity and ABA stress, revealing that most BnLORs showed inducibility. This study enhanced our comprehension of the B. napus LOR gene family and could provide valuable information for identifying and selecting genes for stress resistant breeding.

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