Expansion and stress responses of the AP2/EREBP superfamily in cotton

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• 作者：Chunxiao Liu ; Tianzhen Zhang
• 关键词：Gossypium ; Polyploid ; Duplicated genes ; Homoeologous genes ; Gene expansion ; Stress response
• 刊名：BMC Genomics
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：18
• 期：1
• 全文大小：5686KB
• 刊物主题：Life Sciences, general; Microarrays; Proteomics; Animal Genetics and Genomics; Microbial Genetics and Genomics; Plant Genetics & Genomics;
• 出版者：BioMed Central
• ISSN：1471-2164
• 卷排序：18

文摘

BackgroundThe allotetraploid cotton originated from one hybridization event between an extant progenitor of Gosssypium herbaceum (A₁) or G. arboreum (A₂) and another progenitor, G. raimondii Ulbrich (D₅) 1–1.5 million years ago (Mya). The APETALA2/ethylene-responsive element binding protein (AP2/EREBP) transcription factors constitute one of the largest and most conserved gene families in plants. They are characterized by their AP2 domain, which comprises 60–70 amino acids, and are classified into four main subfamilies: the APETALA2 (AP2), Related to ABI3/VP1 (RAV), Dehydration-Responsive Element Binding protein (DREB) and Ethylene-Responsive Factor (ERF) subfamilies. The AP2/EREBP genes play crucial roles in plant growth, development and biotic and abiotic stress responses. Hence, understanding the molecular characteristics of cotton stress tolerance and gene family expansion would undoubtedly facilitate cotton resistance breeding and evolution research.