Genome-Wide Identification and Expression Analysis of SWEET Family Genes in Sweet Potato and Its Two Diploid Relatives
文献类型： 外文期刊
作者： Dai, Zhuoru 1 ; Yan, Pengyu 1 ; He, Shaozhen 1 ; Jia, Licong 4 ; Wang, Yannan 5 ; Liu, Qingchang 1 ; Zhai, Hong 1 ; Zhao, Ning 1 ; Gao, Shaopei 1 ; Zhang, Huan 1 ;
作者机构： 1.China Agr Univ, Coll Agron & Biotechnol, Key Lab Sweet Potato Biol & Biotechnol, Minist Agr & Rural Affairs,Beijing Key Lab Crop Ge, Beijing 100193, Peoples R China
2.China Agr Univ, Coll Agron & Biotechnol, Joint Lab Int Cooperat Crop Mol Breeding, Minist Educ, Beijing 100193, Peoples R China
3.China Agr Univ, Sanya Inst, Sanya 572025, Peoples R China
4.Yantai Acad Agr Sci, Inst Grain & Oil Crops, Yantai 265500, Peoples R China
5.Henan Acad Agr Sci, Cereal Crops Res Inst, Zhengzhou 450002, Peoples R China
关键词： sweet potato; SWEET; tissue-specific expression; tuberous root development; hormone treatment; abiotic stress
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）
ISSN：
年卷期： 2022 年 23 卷 24 期
页码：
收录情况： SCI
摘要： Sugar Will Eventually be Exported Transporter (SWEET) proteins are key transporters in sugar transportation. They are involved in the regulation of plant growth and development, hormone crosstalk, and biotic and abiotic stress responses. However, SWEET family genes have not been explored in the sweet potato. In this study, we identified 27, 27, and 25 SWEETs in cultivated hexaploid sweet potato (Ipomoea batatas, 2n = 6x = 90) and its two diploid relatives, Ipomoea trifida (2n = 2x = 30) and Ipomoea triloba (2n = 2x = 30), respectively. These SWEETs were divided into four subgroups according to their phylogenetic relationships with Arabidopsis. The protein physiological properties, chromosome localization, phylogenetic relationships, gene structures, promoter cis-elements, protein interaction networks, and expression patterns of these 79 SWEETs were systematically investigated. The results suggested that homologous SWEETs are differentiated in sweet potato and its two diploid relatives and play various vital roles in plant growth, tuberous root development, carotenoid accumulation, hormone crosstalk, and abiotic stress response. This work provides a comprehensive comparison and furthers our understanding of the SWEET genes in the sweet potato and its two diploid relatives, thereby supplying a theoretical foundation for their functional study and further facilitating the molecular breeding of sweet potato.
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