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Mlo基因家族是植物重要的抗病基因。本文通过系统分析木薯基因组数据库,从中共鉴定出21个Mlo成员,其中20个具有完整序列,1个只有部分序列。对其中20个具有完整序列的基因与其他物种的Mlo基因进行聚类关系分析,结果显示,可将木薯Mlo基因家族分为6类(I~VI),其中4类都包括有来自拟南芥的Mlo基因,第VI类只包括2个木薯Mlo基因,可能是木薯中特有的一类Mlo;6个木薯Mlo与已知的抗病Mlo基因分别聚在第IV和第V类,这6个基因可能是木薯基因组中具有抗病功能的Mlo。对所有的木薯Mlo蛋白进行结构分析发现,除了MeMlo20外,其他蛋白均具有6~8个跨膜结构,其中3个蛋白具有N端信号肽。
The Mlo gene family is an important plant disease resistance gene. In this paper, 21 Mlo members were identified from the CCP through systematic analysis of the cassava genome database, of which 20 have complete sequences and 1 have only partial sequences. The cluster analysis of 20 Mlo genes among the 20 complete sequences and other species showed that the Mlo gene families of Cassava can be divided into 6 types (I ~ VI), of which 4 types include Mlo genes from Arabidopsis thaliana Of the Mlo genes, only six Mlo genes from the cassava group VI, probably Mlo, which is unique to cassava, six from the six cassava Mlo and the known disease resistance Mlo genes, The gene may be Mlo, which is disease resistant in the cassava genome. Structural analysis of all cassava Mlo proteins revealed that all proteins except MeMlo20 had 6 to 8 transmembrane structures, of which 3 had an N-terminal signal peptide.