Phylogeography of the Coccus scale insects inhabiting myrmecophytic Macaranga plants in Southeast Asia
Phylogeography of the Coccus scale insects inhabiting myrmecophytic Macaranga plants in Southeast Asia
复制标题
栖息在东南亚密生植物 Macaranga 植物中的球蚴介壳虫的系统发育地理学
DOI：
10.1007/s10144-009-0162-4
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发表时间：
2010
影响因子：
1.7
通讯作者：
T
中科院分区：
文献类型：
--
作者：
Ueda;S.;Quek;S-P.;Itioka;T.;Murase;K. & Itino;T
对同一寄主上的多种共生体进行比较历史地理学研究，可以揭示共生体多样化的过程。食蚁植物Macaranga与专性互惠共生体：Crematogaster（Decacrema亚属）蚂蚁和Coccusscale昆虫有关。我们进行线粒体细胞色素氧化酶I（COI）的基础上，从婆罗洲，马来亚和苏门答腊岛的15个地点收集的253个规模的昆虫的地理分析，调查的规模的历史地理，然后绘制比较共生，但独立分散，Decacremaants这不是特定于不同的Coccuslineages。尽管不同的古代分化模式，但对蚧虫发生的祖先区域重建和年龄估计表明，从上新世到更新世，蚧虫在婆罗洲和马来亚之间反复迁移，这与Decacremaants一致。正如蚂蚁一样，在婆罗洲西北部的北方发现了数量最多的介壳虫谱系，这表明这些地区在更新世的凉爽干燥阶段是雨林避难所。总体而言，上新世更新世多样化的共生规模和蚂蚁的历史之间的一般一致性表明，他们经历了一个共同的历史灭绝/迁移，尽管他们的独立模式的传播和主机殖民化。
Comparative historical biogeography of multiple symbionts occurring on a common host taxa can shed light on the processes of symbiont diversification. MyrmecophyticMacarangaplants are associated with the obligate mutualistic symbionts:Crematogaster(subgenusDecacrema) ants andCoccusscale insects. We conduct phylogeographic analyses based on mitochondrial cytochrome oxidase I (COI) from 253 scale insects collected from 15 locations in Borneo, Malaya and Sumatra, to investigate the historical biogeography of the scales, and then to draw comparisons with that of the symbiotic, but independently dispersing,Decacremaants which are not specific to differentCoccuslineages. Despite the different mode of ancient diversification, reconstruction of ancestral area and age estimation on theCoccusphylogeny showed that the scales repeatedly migrated between Borneo and Malaya from Pliocene to Pleistocene, which is consistent with theDecacremaants. Just as with the ants, the highest number of lineages in the scale insects was found in northern northwest Borneo, suggesting that these regions were rainforest refugia during cool dry phases of the Pleistocene. Overall, general congruence between the Plio–Pleistocene diversification histories of the symbiotic scales and ants suggests that they experienced a common history of extinction/migration despite their independent mode of dispersal and host-colonization.