Raw data: multispecies amplicon sequencing (Loera, Studer, and Kölliker, 2021, Molecular Ecology Resources)

Grasslands cover close to two fifths of Earth's land. They provide many ecosystem services related to the maintenance of soil integrity, and the regulation of water, carbon and nitrogen flows. Grasslands constitute the basis for sustainable roughage production for ruminant feeding. In Switzerland, grasslands cover more than 70% of the total agricultural land, which highlights their importance in the domestic food production chains. Plant genetic diversity (PGD), a component of biodiversity, influences ecosystem functioning in grasslands. High levels of grassland PGD are related to resistance against invasive plants and yield stabilization during environmental stress (e.g., drought or frost). The PGD of grasses and legumes —the two most economically relevant plant families found in grasslands, which naturally grow in a wide climate spectrum— harbors valuable genetic resources for forage breeding. Nevertheless, most PGD studies of natural or semi-natural grasslands (i.e., grasslands th...草原约占地球陆地总面积的五分之二，可提供诸多与维持土壤完整性、调控水、碳及氮循环相关的生态系统服务功能，同时也是反刍动物饲用可持续草料生产的核心基础。在瑞士，草原面积占农业总用地的70%以上，凸显了其在国内食品生产链中的关键地位。植物遗传多样性（Plant Genetic Diversity, PGD）作为生物多样性的组成部分，会影响草原生态系统的功能运转。高水平的草原植物遗传多样性与抵御外来入侵植物的能力、以及干旱、霜冻等环境胁迫下的产量稳定性密切相关。作为草原中两类经济价值最为突出的植物类群，禾本科与豆科植物自然分布于各类气候区间，其蕴含的植物遗传多样性为饲草育种提供了宝贵的遗传资源。然而，绝大多数针对天然或半天然草原（即草原……）的植物遗传多样性研究大多……