Structure bar plot with each bar representing the proportion of ancestry of each sampled individual of feral pigs, North Queensland, to the three inferred groups (beige, grey and black)

Feral pigs occur throughout tropical far north Queensland, Australia and are a significant threat to biodiversity and World Heritage values, agriculture and are a vector of infectious diseases. One of the constraints on long-lasting, local eradication of feral pigs is the process of reinvasion into recently controlled areas. This study examined the population genetic structure of feral pigs in far north Queensland to identify the extent of movement and the scale at which demographically independent management units exist. Genetic analysis of 328 feral pigs from the Innisfail to Tully region of tropical Queensland was undertaken. Seven microsatellite loci were screened and Bayesian clustering methods used to infer population clusters. Sequence variation at the mitochondrial DNA control region was examined to identify pig breed. The figure shows a structure bar plot representing the proportion of ancestry of each sampled individual of feral pig to the three inferred groups (beige, grey and black) with the values on the x-axis referring to sample sites.

野生猪群遍布澳大利亚热带远北昆士兰州，对生物多样性、世界遗产价值、农业构成重大威胁，并成为传染病的传播媒介。长久且局部根除野生猪群的限制之一是它们对近期控制区域的再次入侵过程。本研究对热带昆士兰州远北地区的野生猪群进行了种群遗传结构的考察，以识别其移动范围及存在独立人口管理单位的规模。对来自热带昆士兰州Innisfail至Tully区域的328头野生猪进行了遗传分析。筛选了七个微卫星位点，并使用贝叶斯聚类方法推断种群聚类。通过考察线粒体DNA控制区域的序列变异来识别猪种。图示为表示每个样本个体野生猪祖先比例的结构条形图，其中x轴上的数值代表样本位点，所绘制的三个推断群体为米色、灰色和黑色。