《植物生理学报》 2017, 53(5): 781-784

大薯种质资源多样性研究进展

夏薇, 吴文嫱, 许云, 谢俊, 黄小龙, 黄东益^*

海南大学热带农林学院, 海口570228

通信作者：黄东益；E-mail: dioscorea@163.com

摘　要：

全世界薯蓣科植物有10属约650种, 其中薯蓣属的大薯(Dioscorea alata L.)在热带和亚热带地区广泛种植, 是一些非洲国家的主粮。大薯是一类非常有营养的食物, 与其他薯类作物相比, 大薯的蛋白含量更高, 纤维含量低。此外, 大薯产量潜力极高, 繁殖方式简单, 地上部分生长迅速且块茎可以长期储存。尽管薯蓣属物种被人们广泛食用, 但是相关研究不多, 许多工作都处于起步阶段, 本文主要从大薯染色体倍性、形态标记、生理生化指标以及分子标记等几方面评估种质资源多样性的研究进行综述。

关键词：大薯; 染色体倍性; 形态标记; 生理生化指标; 分子标记

收稿：2017-04-05   修定：2017-05-09

资助：中国热带农业科学院橡胶研究所省部重点实验室/科学观测实验站开放课题重点项目(RRI-KLOF201601)。

Research progress for the genetics diversity analysis of water yam (Dioscorea alata L.)

XIA Wei, WU Wen-Qiang, XU Yun, XIE Jun, HUANG Xiao-Long, HUANG Dong-Yi^*

Institution of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China

Corresponding author: HUANG Dong-Yi; E-mail: dioscorea@163.com

Abstract:

There are approximately ten genera and 650 species in the family Dioscoreaceae and one species in the Dioscorea genus - water yam (Dioscorea alata L) is widely planted in tropical and subtropical regions and consumed as staple food in some countries in African. Water yam is a kind of nourishing food, which has higher protein content and lower fiber content comparing with other tuber crops. Moreover, water yam has high yield potential, ease of propagation, early growth vigour for the aerial part, and long storability of tubers. Although water yam is widely consumed, the research for this species is lagged. This review covers research progresses for the diversity analysis of water yam germplasm through chromosome ploidy, morphological markers, physiological and biochemical index and molecular markers.

Key words: Dioscorea alata; chromosome ploidy; morphological markers; physiological and biochemical index; molecular markers