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首页> 外文期刊>Genomics >Genome-wide identification, evolution and expression analysis of cyclic nucleotide-gated channels in tobacco (Nicotiana tabacum L.)
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Genome-wide identification, evolution and expression analysis of cyclic nucleotide-gated channels in tobacco (Nicotiana tabacum L.)

机译：烟草中循环核苷酸门控通道的基因组鉴定，演化和表达分析（尼古拉塔巴塔克兰语）

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Tobacco (Nicotiana tabacum) serve as the top leading commercial, non-food, and model crop worldwide. Cyclic nucleotide-gated channels (CNGCs) are ligand-gated, calcium-permeable, divalent, cation-selective channels, involved in important biological functions. Here, we systematically characterized thirty-five CNGC genes in the genome of Nicotiana tabacum, and classified into four phylogenetic groups. Evolutionary analysis showed that NtabCNGC family of N. tabacum originated from the parental genome of N. sylvestris and N. tomentosiformis, and further expanded via tandem and segmental duplication events. Tissue-specific expression analysis showed that twenty-three NtabCNGC genes are involved in the development of various tobacco tissues. Subsequent RT-qPCR analyses indicated that these genes are sensitive towards external abiotic and biotic stresses. Notable performances were exhibited by group-I and IV CNGC genes against black shank, Cucumber mosaic virus, Potato virus Y, cold, drought, and cadmium stresses. Our analyses also suggested that NtabCNGCs can be regulated by phosphorylation and miRNAs, and multiple light, temperature, and pathogen-responsive cis-acting regulatory elements present in promotors. These results will be useful for elaborating the biological roles of NtabCNGCs in tobacco growth and development.
机译：烟草（Nicotiana Tabacum）作为全球领先的商业，非食物和模型作物。循环核苷酸门控通道（CNGC）是配体门控，可渗透的，二价，阳离子选择性通道，参与重要的生物学功能。在这里，我们在烟草基因力区的基因组中系统地表征了三十五个CNGC基因，并分为四个系统发育基团。进化分析表明，NTABCNGC系列的N. Tabacum源于N.Sylvestris和N.Tomentosiformis的父母基因组，并通过串联和节段性重复事件进一步扩展。组织特异性表达分析表明，二十三种NTABCNGC基因参与各种烟草组织的发育。随后的RT-QPCR分析表明，这些基因对外部非生物和生物应力敏感。对黑柄（Chank），黄瓜镶嵌病毒，马铃薯病毒Y，冷，干旱和镉胁迫的群体，IV CNGC基因展出了显着性能。我们的分析还表明，NTABCNGC可以通过磷酸化和MIRNA来调节，以及促进剂中存在的多个光，温度和病原体反应性CIS作用调节元件。这些结果对于阐述NTABCNGCS在烟草生长和发育中的生物学作用是有用的。

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