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Distribution and Germplasm Phenotypic Diversity of Sheepgrass (Leymus chinensis)

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Sheepgrass (Leymus chinensis): An Environmentally Friendly Native Grass for Animals

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Abstract

Sheepgrass is an important grass which has both ecological and economical value. It is mainly distributed in Eurasia and America, extending to sub-tropic and tropic alpine zones. The previous researches have found that one genome of sheepgrass (NsNsXmXm) came from the Psathyrostachys (NsNs), by observing morphological feature, such as meiotic chromosome pairing of intergeneric hybrids, DNA patterns of hybridization, and variation in repeated nucleotide sequences. Based on the sequences ITS and trnL-F, it was concluded that the maternal of sheepgrass is Ns genome and the paternal is Xm genome (Psathyrostachys). Additionally, 293 accessions’ genetic diversity was assessed continuously in 37 morphological features in 3 years, and the result shows that the yellow-green type had significantly (P < 0.05) less genetic diversity than the gray-green type of sheepgrass. The highest genetic diversity index distributes from 124 to 128°E longitude region, which shows the richest germplasm of sheepgrass. This discovery can provide a strong support for assessing the genetic diversity, breeding, and evolution of sheepgrass in China in the future.

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Authors and Affiliations

  1. The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China

    Zhipeng Liu

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  1. Zhipeng Liu
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Correspondence to Zhipeng Liu .

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Editors and Affiliations

  1. Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, China

    Gongshe Liu

  2. Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, China

    Xiaoxia Li

  3. Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, China

    Qingfen Zhang

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Liu, Z. (2019). Distribution and Germplasm Phenotypic Diversity of Sheepgrass (Leymus chinensis). In: Liu, G., Li, X., Zhang, Q. (eds) Sheepgrass (Leymus chinensis): An Environmentally Friendly Native Grass for Animals. Springer, Singapore. https://doi.org/10.1007/978-981-13-8633-6_2

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