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Genome-Wide Identification, Characterization and Expression Profiling of Aluminum-Activated Malate Transporters in Eriobotrya japonica Lindl.

文献类型： 外文期刊

作者： Ali, Muhammad Moaaz 1 ; Alam, Shariq Mahmood 2 ; Anwar, Raheel 3 ; Ali, Sajid 4 ; Shi, Meng 1 ; Liang, Dangdi 1 ; Lin, Zhimin 5 ; Chen, Faxing 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou 350002, Peoples R China

2.Huazhong Agr Univ, Coll Hort Forestry Sci, Key Lab Hort Plant Biol, Minist Educ, Wuhan 430070, Peoples R China

3.Univ Agr Faisalabad, Inst Hort Sci, Faisalabad 38000, Pakistan

4.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Hort, Multan 60800, Pakistan

5.Fujian Acad Agr Sci, Inst Biotechnol, Fuzhou 350003, Peoples R China

关键词： gene duplication; ALMT; synteny; malic acid; conserved motif; cis-regulatory elements

期刊名称：HORTICULTURAE （ 影响因子：2.923； 五年影响因子：3.582 ）

ISSN：

年卷期： 2021 年 7 卷 11 期

页码：

收录情况： SCI

摘要： Aluminum-activated malate transporters (ALMTs) have multiple potential roles in plant metabolism such as regulation of organic acids in fruits, movement of guard cells and inducing tolerance against aluminum stress. However, the systematic characterization of ALMT genes in loquat is yet to be performed. In the current study, 24 putative ALMT genes were identified in the genome of Eriobotrya japonica Lindl. To further investigate the role of those ALMT genes, comprehensive bioinformatics and expression analysis were performed. In bioinformatics analysis, the physiochemical properties, conserved domains, gene structure, conserved motif, phylogenetic and syntenic analysis of EjALMT genes were conducted. The result revealed that the ALMT superfamily domain was conserved in all EjALMT proteins. EjALMT proteins were predicted to be localized in the plasma membrane. Genomic structural and motif analysis showed that the exon and motif number of each EjALMT gene ranged dramatically, from 5 to 7, and 6 to 10, respectively. Syntenic analysis indicated that the segmental or whole-genome duplication played a vital role in extension of the EjALMT gene family. The K-a and K-s values of duplicated genes depicted that EjALMT genes have undergone a strong purifying selection. Furthermore, the expression analysis of EjALMT genes was performed in the root, mature leaf, stem, full-bloom flower and ripened fruit of loquat. Some genes were expressed differentially in examined loquat tissues, signifying their differential role in plant growth and development. This study provides the first genome-wide identification, characterization, and relative expression of the ALMT gene family in loquat and provides the foundation for further functional analysis.

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