Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil.
Genet Mol Biol. 2013 Mar;36(1):118-23. doi: 10.1590/S1415-47572013000100017. Epub 2013 Mar 4.
Genetic diversity is a major component of the biological diversity of an ecosystem. The survival of a population may be seriously threatened if its genetic diversity values are low. In this work, we measured the genetic diversity of the stingless bee Plebeia remota based on molecular data obtained by analyzing 15 microsatellite loci and sequencing two mitochondrial genes. Population structure and genetic diversity differed depending on the molecular marker analyzed: microsatellites showed low population structure and moderate to high genetic diversity, while mitochondrial DNA (mtDNA) showed high population structure and low diversity in three populations. Queen philopatry and male dispersal behavior are discussed as the main reasons for these findings.
遗传多样性是生态系统生物多样性的主要组成部分。如果种群的遗传多样性值较低，其生存可能会受到严重威胁。在这项工作中，我们基于分析 15 个微卫星位点和测序两个线粒体基因获得的分子数据，测量了无刺蜜蜂 Plebeia remota 的遗传多样性。种群结构和遗传多样性因分析的分子标记而异：微卫星显示出低的种群结构和中等至高的遗传多样性，而线粒体 DNA（mtDNA）在三个种群中显示出高的种群结构和低的多样性。我们讨论了蜂王的亲缘选择和雄蜂的扩散行为是造成这些发现的主要原因。
