摘要
GS5作为正调控水稻粒径大小的基因,对于水稻的产率调控具有十分重要的作用,然而关于GS5基因家族的进化还不是很清楚。通过对水稻中的GS5基因和水稻、高粱、玉米、二叶短柄草、谷子的全基因组序列分别进行比较分析,发现在五个禾本科植物中均有调控粒径大小的基因存在;共线性分析揭示基因倍增有利于GS5基因家族的扩增;另外,系统发育分析表明其家族中有些基因的进化速率明显较快,这将使得一些基因会较快变异为新的基因序列。
GS5 as a positive regulatory gene of the rice particle size has a very Important rote in me regulation of rioe yield. However, GS5 gene family evolution is not very clear. This paper has shown that there exists the gene regulating particle size respetively in the five grasses, including rite, sorghum, Zea mays, Braehypodium distachyon and Setaria italiea. This finding was got through the comparision between GS5 gene of rice and the whole genome sequences of those five grasses ; eollinearity analysis found that gene duplication is benifieial to the amplieation of GS5 gene family ;In addition ,phylogenetie analysis showed that some gene in the family has a signiiieantly faster rate, which will make rapid genes mutate into a new gene sequress.
出处
《河北联合大学学报(自然科学版)》
CAS
2012年第4期65-68,共4页
Journal of Hebei Polytechnic University:Social Science Edition
基金
国家自然科学基金项目(NO.31100913)
河北省科学技术指导项目(NO.Z2011126)