Filtered SNPs for wild Paspalum vaginatum and Paspalum distichum

Filtered SNP calls in .ped format from \"Hybridization, polyploidy and clonality influence geographic patterns of diversity and salt tolerance in the model halophyte seashore paspalum (Paspalum vaginatum)\". We used GBS to genotype 218 P. vaginatum and P. distichum accessions collected from the US Gulf and Atlantic coasts plus available USDA germplasm. We confirm that P. vaginatum and P. distichum are genetically distinct and that the coarse-textured ecotype of P. vaginatum is composed of hybrids between fine-textured accessions and an unidentified paspalum species. These hybrids vary in ploidy and subgenome composition which may influence their geographic patterns of adaptation to saline environments.

本数据集为来自论文《杂交、多倍化与克隆性影响模式盐生植物海滨雀稗（*Paspalum vaginatum*）的多样性地理格局与耐盐性》的过滤后.ped格式SNP分型数据。本研究采用测序分型（Genotyping-by-Sequencing，GBS）技术，对采集自美国墨西哥湾与大西洋沿岸的218份海滨雀稗（*Paspalum vaginatum*）和双穗雀稗（*Paspalum distichum*）种质材料，以及现有美国农业部（United States Department of Agriculture，USDA）种质资源开展基因型分型。研究证实，海滨雀稗与双穗雀稗在遗传层面存在显著分化；海滨雀稗的粗质地生态型由细质地种质材料与一种未命名雀稗属物种的杂交后代所构成。此类杂交后代的倍性与亚基因组组成存在差异，该差异或可影响其适应盐生环境的地理分布格局。