中国野生芒果种质资源及其AFLP分子标记

从生物学特性和AFLP标记两个方面对中国广西百色那坡县野生芒果资源进行了初步描述和研究.结果表明:那坡县野生芒果在形态学上与普通芒果较为相似;AFLP标记显示,包括部分栽培品种、林生芒果、广西百色那坡县野生芒果、泰国芒果等在内的92份芒果种质在相似系数0.63的水平上可分为14组,广西百色那坡县野生芒果虽然与林生芒果、泰国野生芒果等芒果属其它种较为接近,但仍处于栽培芒果的中间.不能与栽培芒果分开.这些证据表明分布在广西百色那坡县平盂镇的野生芒果属于普通芒果,可能是栽培芒果的野生种而不是芒果属的其它种.

The Wild Mango Germplasm Resources in China and Their AFLP Molecular Markers

The genus Mangifera contains 69 species. It is worthwhile to explore the origin of Mangifera indica. In this context the wild mango germplasm at Lapuo County, Guangxi, China were studied by using their biological characteristics and the amplified fragments length polymorphism (AFLP) molecular marker. These wild mangoes were found morphologically similar to Mangifera indica; and the AFLP markers showed that at the similarity coefficient of 0.63, 92 mangoes including cultivars, Mangifera sylvatica Roxb., wild mangoes, Mangifera. Siamensis Warbg. were divided into 14 groups and that the wild mangoes at Lapuo were close to M. sylvatica Roxb. and M. siamensis Warbg., but remained to fall in the middle of the cultivars and could not be separated from them. These evidences indicated that the wild mangoes belonged to M. indica, not other species of the genus Mangifera, and might be the wild species of the cultivar mangoes.