摩擦禾属于禾本科玉蜀黍族摩擦禾属，起源于美洲，与玉米、大刍草具有共同祖先，其在玉米的起源与进化过程中可能扮演着重要角色。摩擦禾是一种多年生暖季型丛生C4禾草，常用于优质饲草料生产、控制土壤侵蚀和生物质能源。其作为玉米的近缘属材料，保存有栽培玉米不具有的优质、抗病、抗寒、耐涝、耐盐和多年生等多种优良基因，是拓展玉米遗传基础的重要种质。本文从摩擦禾属的习性和分布、摩擦禾属的分类、摩擦禾属的种间可杂交性、摩擦禾属与玉蜀黍属杂交性、摩擦禾属的优良特性和摩擦禾基因向玉米转移的途径等方面进行综述，为摩擦禾属的研究和利用提供参考。

The genus Tripsacum belongs to the Gramineae Maydeae Family. Tripsacum L., which originated from the Americas and has a common ancestor with maize and toesinte, may play an important role in the origin and evolution of maize. Tripsacum grass is a perennial warm-season C4 type of grass, which is often used for the production of high-quality forage, control of soil erosion and also biomass energy. As a related material of maize, it conserves high quality and disease resistance ability that cultivated maize does not have. It also contains some variety of excellent genes such as cold resistance, salt tolerance and perennial, which are important germplasm for expanding the genetic basis of maize. This paper examines the habit, classification and distribution of Tripsacum L., the interspecific hybridization of Tripsacum L., the hybridization of Tripsacum L. and Zea L., the exceptional properties of Tripsacum L., and the transfer of Tripsacum genes to maize the pathways. In order to provide a reference for the research and utilization of Tripsacum L.

S513.021

“973”项目（2014CB138705）、四川省重大科技专项（2018NZDZX0001）、国家自然科学基金项目（31371640）、四川省饲草育种攻关项目（2016NZ0098-1103）