Data from: Polyamines in the life of Arabidopsis: profiling the expression of S-adenosylmethionine decarboxylase (SAMDC) gene family during its life cycle

Arabidopsis has 5 paralogs of the S-adenosylmethionine decarboxylase (SAMDC) gene. Neither their specific role in development nor the role of positive/purifying selection in genetic divergence of this gene family is known. While some data are available on the organ-specific expression of AtSAMDC1, AtSAMDC2, AtSAMDC3 and AtSAMDC4 at transcript level, not much is known about their promoters including AtSAMDC5 (another paralog), which is believed to be non-functional.

拟南芥的S-腺苷甲硫氨酸脱羧酶（S-adenosylmethionine decarboxylase，SAMDC）基因家族包含5个旁系同源基因。目前对于该基因家族各成员在发育过程中的具体功能，以及正选择/纯化选择在该家族遗传分化中所发挥的作用，均尚未明确。尽管已有部分关于AtSAMDC1、AtSAMDC2、AtSAMDC3及AtSAMDC4转录水平组织特异性表达的研究数据，但对于包括被认为无功能的旁系同源基因AtSAMDC5在内的各基因启动子的了解仍十分有限。