Geographical distribution and diversity of bacteria associated with natural populations of Drosophila melanogaster
Geographical distribution and diversity of bacteria associated with natural populations of Drosophila melanogaster
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DOI：
10.1128/aem.02120-06
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发表时间：
2007-06-01
影响因子：
4.4
通讯作者：
Promislow, Daniel E. L.
中科院分区：
文献类型：
--
作者：
Corby-Harris, Vanessa;Pontaroli, Ana Clara;Promislow, Daniel E. L.
果蝇是生物学中应用最广泛的模型系统之一。然而，对其相关的细菌群落知之甚少。作为了解这些社区的第一步，我们比较了从11个自然种群的成年D.黑腹菌来自这些序列库的细菌被分为74个不同的分类群，跨越变形菌门、拟杆菌门和厚壁菌门，这些门在宿主种群中的分布不均匀。种群间属的丰度分布符合幂律分布。我们观察到宿主种群位置之间的差异，无论是在细菌群落丰富度和组成。尽管这种显着的空间变化，物种丰富度和各种非生物因素，如温度和纬度之间没有关系。总的来说，细菌群落与成人D。黑腹果蝇的宿主是多样的，并且在宿主种群中是不同的。
Drosophila melanogaster is one of the most widely used model systems in biology. However, little is known about its associated bacterial community. As a first step towards understanding these communities, we compared bacterial 16S rRNA gene sequence libraries recovered from 11 natural populations of adult D. melanogaster. Bacteria from these sequence libraries were grouped into 74 distinct taxa, spanning the phyla Proteobacteria, Bacteroidetes, and Firmicutes, which were unevenly spread across host populations. Summed across populations, the distribution of abundance of genera was closely fit by a power law. We observed differences among host population locations both in bacterial community richness and in composition. Despite this significant spatial variation, no relationship was observed between species richness and a variety of abiotic factors, such as temperature and latitude. Overall, bacterial communities associated with adult D. melanogaster hosts are diverse and differ across host populations.