Genome-wide identification and expression profiling of the cystatin gene family in apple (Malus x domestica Borkh.)

被引：25

作者：

Tan, Yanxiao ^{[1
]}

Wang, Suncai ^{[1
,2
]}

Liang, Dong ^{[1
]}

Li, Mingjun ^{[1
]}

Ma, Fengwang ^{[1
]}

机构：

[1] Northwest A&F Univ, Coll Hort, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China

[2] Tianshui Normal Univ, Coll Life Sci & Chem, Tianshui 748100, Gansu, Peoples R China

来源：

PLANT PHYSIOLOGY AND BIOCHEMISTRY | 2014年 / 79卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Apple; Gene expression; Gene family; Plant cystatin; Stress; CYSTEINE PROTEINASE-INHIBITOR; ARABIDOPSIS-THALIANA; BARLEY CYSTATIN; ELEMENTS; DATABASE; COMPLEX; ATCYS1; PAPAIN; SALT; ICY;

D O I：

10.1016/j.plaphy.2014.03.011

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cystatins or phytocystatins (PhyCys) comprise a family of plant-specific inhibitors of cysteine proteinases. Such inhibitors are thought to be involved in the regulation of several endogenous processes as well as defense against biotic or abiotic stresses. However, information about this family is limited in apple. We identified 26 PhyCys genes within the entire apple genome. They were clustered into three distinct groups distributed across several chromosomes. All of their putative proteins contained one or two typical cystatin domains, which shared the characteristic motifs of PhyCys. Eight selected genes displayed differential expression patterns in various tissues. Moreover, their transcript levels were also up-regulated significantly in leaves during maturation, senescence or in response to treatment with one or more abiotic stresses. Our results indicated that members of this family may function in tissue development, leaf senescence, and adaptation to adverse environments in apple. (C) 2014 Elsevier Masson SAS. All rights reserved.

引用

页码：88 / 97

页数：10

共 43 条

[1] Structural and functional diversity within the cystatin gene family of Hordeum vulgare [J].