【摘 要】
：
The Iron walnut(Juglans sigillata),belongs to Juglans of Juglandaceae,was well-known economically important resource plants for the edible nuts,high-quality wood,medicinal use,and sympatric distribute
【机 构】
：
Key Laboratory of Resource Biology and Biotechnology in Western China,Ministry of Education,College
【出 处】
：
陕西省植物学会2018年学术研讨会
论文部分内容阅读
The Iron walnut(Juglans sigillata),belongs to Juglans of Juglandaceae,was well-known economically important resource plants for the edible nuts,high-quality wood,medicinal use,and sympatric distributed with Juglans regia.Detailed research on genetic diversity and introgression of two closely related walnut species,especially in southwestern China,was still lacking.We used 506 individuals from 28 populations of two walnut species(J.regia and J.sigillata)based on 25 EST-SSR markers to test if their introgression was possibly related to sympatric distribution.We also compared genetic diversity estimates between two walnut species.Our results showed that all J.regia populations possess slightly higher genetic diversity than J.sigillata populations.The Geostatistical IDW technique(HO,PPL,NA and Pri)on the map showed that northern Yunnan and Guizhou(J.regia)and northwestern Yunnan(J.sigillata)had high genetic diversity,respectively.
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