Various factors influence patterns of genetic diversity within and between populations that are important considerations for plant conservation. Both clonality and population genetic differentiation are key factors informing conservation actions, especially for rare species. Banksia mimica is a rare species that occurs in three disjunct locations in the biodiversity hotspot of the southwest Australian Floristic Region of Western Australia. Extant populations are suspected to have varying levels of clonality and high levels of genetic differentiation due to geographic disjunction. A genetic analysis was undertaken in order to confirm clonal reproduction and obtain initial estimates of genotypic diversity, and to assess genetic diversity within, and genetic structure among, populations. Genotypic richness ranged from 0.210 to 1.00 supporting observations in the field of variable degrees of clonal growth. The most clonal populations showed genetic signals of greater levels of observed heterozygosity than expected heterozygosity and negative F_IS values that were not present in other populations of B. mimica or populations of the nonclonal sister taxon B. vestita. There was strong genetic structure with high genetic divergence among geographically disjunct population groups (global F_ST = 0.392, D_ST = 0.475), as is often found within the Australian flora. Genetic differentiation among disjunct populations located on the Whicher Scarp and more northern populations approached, or was greater than, that between Whicher populations and populations of the sister taxa B. vestita. This result is consistent with several other species that show genetic differentiation in disjunct populations located on the Whicher Scarp geomorphological formation. Results suggest a reassessment of the taxonomy and identification of evolutionary significant units for populations of B. mimica would support effective conservation management of this species.

各种因素影响种群内部和种群之间的遗传多样性模式，这是植物保护的重要考虑因素。克隆性和种群遗传分化都是决定保护行动的关键因素，特别是对于稀有物种。山龙眼是一种稀有物种，出现在西澳大利亚州西南澳大利亚植物区的生物多样性热点中的三个不同位置。由于地理上的分离，人们怀疑现存种群具有不同水平的克隆性和高水平的遗传分化。进行了遗传分析，以确认克隆繁殖并获得基因型多样性的初步估计，并评估种群内的遗传多样性以及种群之间的遗传结构。基因型丰富度范围从0.210到1.00，支持在不同程度的克隆生长领域中的观察。大多数克隆种群的遗传信号所观察到的杂合度水平高于预期的杂合度，并且其他群体中未出现的负_FIS值。B.米米察或者非克隆姐妹类群的群体B. vestita。 正如澳大利亚菌群中常见的那样 ，在地理上相互分离的人群之间具有强大的遗传结构，且遗传差异很大（全球F _ST = 0.392，D _ST = 0.475）。位于Whoer鳞茎上的杂居种群与更北部的种群之间的遗传分化接近或大于Whoer种群与姊妹类群B.。该结果与其他几个在Whoer Scarp地貌构造上的不同种群中显示出遗传分化的物种一致。结果表明，对分类学进行重新评估并确定密实双歧杆菌种群的进化重要单位将支持对该物种的有效保存管理。