野生狗牙根种质资源的遗传多样性研究简述

Research advances on genetic diversity in wild Cynodon dactylon germplasm

种质资源的遗传多样性是物种生存和发展的基础,是物种遗传改良的根本。野生狗牙根(Cynodon dac-tylon)具有丰富的植物学形状和遗传多样性,是狗牙根进行品种改良与创新的重要基因库。本研究从野生狗牙根的形态学水平、细胞学、蛋白质水平、分子标记技术及育种等研究进展进行综述,并针对野生狗牙根种质资源研究中存在的问题提出建议,以期为进一步研究野生狗牙根种质资源提供借鉴与参考。

The genetic diversity of germplasm is the basis of survival, adaptation, evolution and the improvement of species. Wild populations of Cynodon dactylon, with various botanical characteristics and diversity, are an important gene pool for improvement and innovation of C. dactylon. This paper reviewed literatures on genetic diversity of wild C. dactylon from different levels including morphology, cytopatholo- gy, protein level, molecular marker techniques and breeding. At the same time, suggestions for the fur- ther study were proposed, in order to provide reference to the study on the genetic diversity of germplasm of wild C. dactylon.