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本文报道了西藏栽培大麦的分类、分布,描述了变种的形态特征及其特点,鉴定它们属于1种3亚种240变种,其中ssp.intermedium(Korn.)Hsu为国内首次发现,发现并命名新变种172个。 西藏栽培大麦具有春性、遗传多样性和控制主要遗传性状的显性基因频率高等主要特点,其基因型与西方大麦的基因型截然不同,属东方型,而东方大麦的起源中心在中国。根据作者和国内外学者近年来对青藏高原栽培和近缘野生大麦的研究结果着,中国栽培大麦和青藏高原近缘野生大麦的遗传距离最近,进而证明了青藏高原是中国栽培大麦的初生起源中心,同时也是世界栽培大麦的起源中心之一。
This paper reports the classification and distribution of cultivated barley in Tibet and describes the morphological characteristics and characteristics of the cultivars in Tibet. It is identified that they belong to one of the 240 species of 3 subspecies and 240 species, of which ssp.intermedium (Korn.) Hsu was the first discovery, discovery and naming in Tibet 172 variants. Tibetan cultivated barley has the main characteristics of spring, genetic diversity and dominant gene frequency control of major genetic traits. The genotype of Tibetan barley is very different from the genotype of western barley, belonging to oriental type, while the origin of Oriental barley is in China. According to the results of the study by authors and scholars at home and abroad on the cultivation of Tibetan Plateau and the neighboring wild barley in recent years, the genetic distance between cultivated barley and wild barley in the Qinghai-Tibet Plateau is the most recent, which proves that the Tibetan Plateau is the primary origin of cultivated barley in China It is also one of the centers of origin of cultivated barley in the world.