Genome-wide analysis of the HAK potassium transporter gene family reveals asymmetrical evolution in tobacco (Nicotiana tabacum)

被引：20
|
作者：
Song, Zhongbang [1 ,2 ]
Wu, Xingfu [1 ,2 ]
Gao, Yulong [1 ,2 ]
Cui, Xiang [3 ]
Jiao, Fangchan [1 ,2 ]
Chen, Xuejun [1 ,2 ]
Li, Yongping [1 ,2 ]
机构：
[1] Yunnan Acad Tobacco Agr Sci, Kunming 650021, Yunnan, Peoples R China
[2] Natl Ctr Tobacco Gene Engn, Kunming 650021, Yunnan, Peoples R China
[3] Huazhong Agr Univ, Coll Vet Med, Wuhan 430070, Hubei, Peoples R China
来源：
GENOME | 2019年 / 62卷 / 04期
关键词：
tobacco; potassium; HAK; gene family; asymmetrical evolution; FUNCTIONAL-CHARACTERIZATION; STRESS RESPONSES; ARABIDOPSIS; EXPRESSION; RICE; ROOTS; IDENTIFICATION; DEFICIENCIES; ACQUISITION; TOLERANCE;
D O I：
10.1139/gen-2018-0187
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Being an essential mineral nutrient, potassium (K+) plays numerous important roles in plant growth and development and determines the yield and quality of crop products. The cellular level of K+ is controlled to a large extent by the K+ transporter, which belongs to the KT/HAK/KUP (HAK) family. However, little is known about these genes in tobacco. In this study, we surveyed the tobacco genome and identified 41 putative NtHAK genes (NtHAKS1-NtHAKS21 and NtHAKT1-NtHAKT20). Investigation of the cis-elements in upstream regions of these NtHAK genes suggests that members of this family respond to environmental cues and phytohormones. Expression data mining reveals that NtHAK genes showed clear sub-genome dominance. In all, these results will provide molecular insights into K+ transporter research in tobacco.
引用
收藏
页码：267 / 278
页数：12
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