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Population genetic insights into the conservation of common walnut(Juglans regia)in Central Asia

Plant Diversity 2024年第5期46卷 600-610页

作者： Linjiang Ye Robabeh Shahi Shavvon Hailing Qi Hongyu Wu Pengzhen Fan Mohammad Nasir Shalizi Safiullah Khurram Mamadzhanov Davletbek Yerlan Turuspekov Jie Liu CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Key Laboratory of Plant Resources and Biodiversity of Jiangxi Province Jingdezhen UniversityJingdezhen 333400JiangxiChina germplasm Bank of Wild Species&Yunnan Key Laboratory of Crop Wild Relatives Omics Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Department of Biology Faculty of ScienceYasouj UniversityYasouj 75918-74934Iran University of Chinese Academy of Sciences Beijing 100049China Department of Forestry and Environmental Resources North Carolina State UniversityRaleighNC 27695United States Department of Forestry and Natural Resources Faculty of AgricultureKabul UniversityKabul D-1006Afghanistan National Academy of Science of the Kyrgyz Republic Jalal-Abad Scientific CenterJalal-Abad 715600Kyrgyzstan Laboratory of Molecular Genetics Institute of Plant Biology and BiotechnologyAlmaty 050040Kazakhstan

The common walnut(Juglans regia)is one of the most economically important nut trees cultivated *** its importance,no comprehensive evaluation of walnut tree population genetics has been undertaken across the range where it originated,Central *** this study,we investigated the genetic diversity and population structure of 1082 individuals from 46 populations across Central *** found moderate genetic diversity of *** across Central Asia,with 46 populations clustered into three groups with a weak relationship between genetic and geographic *** findings reveal that the western Himalaya might be the core region of common walnut genetic diversity in Central Asia and that,except for two populations in Gongliu Wild Walnut Valley,humans might have introduced walnut populations to Xinjiang,*** observed distribution of the genetic landscape has probably been affected by historical climate fluctuation,breeding system,and prolonged anthropogenic *** propose the conservation of the core genetic diversity resources in the western Himalaya and pay special attention to populations from Gongliu in *** findings enhance our understanding of the genetic variation throughout the distribution range of *** in Central Asia,which will provide a key prerequisite for evidence-based conservation and management.

关键词： Central Asia Genetic diversity germplasm management Gongliu wild walnut valley Juglans regia Western Himalaya

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Production and genetic improvement of minor cereals in China

引用

The Crop Journal 2017年第2期5卷 103-114页

作者： Xianmin Diao Institute of Crop Science Chinese Academy of Agricultural Sciences Beijing 100081 China

China is a leading country in the production of several minor cereals such as foxtail millet,Job's tears,naked oat,and naked *** and proso millet have also contributed greatly to Chinese *** millet,sorghum,barley,and proso millet were widely grown as major crops 60 years ago,and the reduction in their cultivation area reflects historical changes in Chinese agriculture over the past *** germplasm collections from the 1950 s to the 1990 s gathered more than 66,690 accessions of these minor cereals,and for some of them,the Chinese germplasm collections are the largest in the world;for example,the 27,700 accessions of foxtail *** evaluations of each cereal species have focused mainly on drought tolerance,nutritional quality,and resistance to their main *** among lines and selection of those with desirable traits were the main breeding methods for minor cereals in the 1950 s and 1960 s,but these methods were replaced by crossbreeding in the 1970 *** developed cultivars have greatly changed the production situation,and many super cultivars have become milestones in crop breeding *** this review,we describe the distribution and ecoregions,origin and domestication,and landmark varieties of several minor cereals in *** all of the minor cereals are drought-tolerant and *** requirements for environmentally friendly crops and a more diverse food supply for humans and animals provide new opportunities to cultivate minor cereals in the drier and warmer environmental conditions that are predicted in the future.

关键词： Minor cereals Origination germplasm management Breeding

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