ANK repeat containing proteins are common in plants and play important roles in cell cycle regulation, cytoskeleton interaction, transcription, ion transport, signal transduction, and defense responses. ACCELERATED CELL DEATH 6 (ACD6) is a member of Ankyrin repeat transmembrane (ANK-TM) group, with thirteen subgroups. In this study, we investigated all ACD6-like genes in eight leguminous plants. Fourteen, eleven, ten, seven, eight, eleven, five, and eight ACD6-like genes were identified in Glycine max, Phaseolus vulgaris, Vigna unguiculate, Vigna radiata, Vigna angularis, Pisum sativum, Cicer arietinum, and Lupinus angustifolius, respectively. Phylogenetic analysis suggested that ACD6-like proteins from those eight leguminous plants can be divided into five groups (I–V). In addition, the number of motifs varied from three to eight among those ACD6-like proteins, suggesting functional divergence among those ACD6-like proteins. The expression profiles of ACD6-like genes suggested their functional diversification in leguminous plants. The gene expression profile of Glycine max under pathogen infection showed that some ACD6-like genes are involved during the pathogen response. This study lays a solid foundation for further studies of ACD6-like genes in leguminous plants.

含有 ANK 重复序列的蛋白质在植物中很常见，在细胞周期调节、细胞骨架相互作用、转录、离子转运、信号转导和防御反应中发挥重要作用。加速细胞死亡 6 ( ACD6 ) 是锚蛋白重复跨膜 (ANK-TM) 组的成员，有 13 个亚组。在这项研究中，我们调查了八种豆科植物中的所有ACD6样基因。在Glycine max、Phaseolus vulgaris、Vigna unguiculate、Vigna radiata、Vigna angularis、Pisum sativum中鉴定了14、11、10、7、8、11、5和 8 个ACD6样基因、Cicer arietinum和Lupinus angustifolius，分别。系统发育分析表明，来自这八种豆科植物的 ACD6 样蛋白可分为五组 (I-V)。此外，这些 ACD6 样蛋白中的基序数量从 3 到 8 个不等，表明这些 ACD6 样蛋白之间存在功能差异。ACD6样基因的表达谱表明它们在豆科植物中的功能多样化。的基因表达谱大豆病原体感染下表明，一些ACD6-样基因所述病原体应答期间的参与。本研究为进一步研究ACD6-就像豆科植物中的基因。