Abstract：
Optimization of DNA collection for National gene bank and conservation programs requires information on spatial and genetic distribution of animals countrywide. The relationship between genetic and geographic distances were examined in 8 Brazilian horse breeds (Baixadeiro, Crioulo, Campeiro, Lavradeiro, Marajoara, Mangalarga Marchador, Pantaneiro and Puruca) using Single Nucleotide Polymorphism markers and collection point locations. Mantel correlations, Genetic Landscape Shape Interpolation, Allelic Aggregation Index Analyses and Spatial autocorrelation tests indicated a nonrandom distribution of horses throughout the country. Minimum collection distances for the national Gene Bank should be 530km, with clear divisions seen in genetic structure of horse populations in both North/South and East/West directions. Comparing Pantaneiro and North/Northeastern breeds, physical distance is not necessarily the defining factor for genetic differentiation. This should be considered when sampling these local breeds. These data can help optimise GenBank collection routines and conservation strategies for these breeds.
摘要：
国家基因库和保护计划的DNA收集优化需要有关全国动物的空间和遗传分布的信息。在8个巴西马品种（Baixadeiro，Crioulo,坎佩罗,Lavradeiro,Marajoara,MangalargaMarchador,Pantaneiro和Puruca）使用单核苷酸多态性标记和收集点位置。Mantel相关性，遗传景观形状插值，等位基因聚集指数分析和空间自相关测试表明，马匹在全国范围内非随机分布。国家基因库的最小采集距离应为530km，在北/南和东/西方向的马种群的遗传结构中都有明显的划分。比较潘塔尼罗和北方/东北品种，物理距离不一定是遗传分化的决定性因素。在对这些当地品种进行采样时应考虑到这一点。这些数据可以帮助优化这些品种的GenBank收集程序和保护策略。
