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Identification and Expression Analysis of the NAC Gene Family in <i>Coffea canephora</i>
oleh: Xiangshu Dong, Yuan Jiang, Yanan Yang, Ziwei Xiao, Xuehui Bai, Jing Gao, Shirui Tan, Yoonkang Hur, Shumei Hao, Feifei He
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2019-10-01 |
Deskripsi
The NAC gene family is one of the largest families of transcriptional regulators in plants, and it plays important roles in the regulation of growth and development as well as in stress responses. Genome-wide analyses have been performed in diverse plant species, but there is still no systematic analysis of the <i>NAC</i> genes of <i>Coffea canephora</i> Pierre ex A. Froehner. In this study, we identified 63 <i>NAC</i> genes from the genome of <i>C. canephora</i>. The basic features and comparison analysis indicated that the <i>NAC</i> gene members increased via duplication events during the evolution of the plant. Phylogenetic analysis divided the NAC proteins from <i>C. canephora</i>, <i>Arabidopsis</i> and rice into 16 subgroups. Analysis of the expression patterns of <i>CocNACs</i> under cold stress and coffee bean development indicated that 38 <i>CocNACs</i> were differentially expressed under cold stress; six genes may play important roles in the process of cold acclimation, and four genes among 54 <i>CocNACs</i> showing a variety of expression patterns during different developmental stages of coffee beans may be positively related to the bean development. This study can expand our understanding of the functions of the <i>CocNAC</i> gene family in cold responses and bean development, thereby potentially intensifying the molecular breeding programs of <i>Coffea</i> spp. plants.