Western Palaearctic phylogeography of an inquiline oak gall wasp, Synergus umbraculus PHYLOGEOGRAPHY OF AN INQUILINE GALL WASP
Western Palaearctic phylogeography of an inquiline oak gall wasp, Synergus umbraculus PHYLOGEOGRAPHY OF AN INQUILINE GALL WASP
复制标题
西古北界的柞树瘿蜂，Synergus umbraculus 系统发育地理学
DOI：
10.1111/j.1095-8312.2010.01609.x
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发表时间：
2011
影响因子：
1.9
通讯作者：
BIHARI P
中科院分区：
文献类型：
--
作者：
BIHARI P
昆虫诱导的植物虫瘿包括种类丰富但自成一体的食草动物和天敌群落。在本研究中，我们专注于瘿引起的cynipid瘿蜂对橡树，并在最不知名的营养级，这些瘿包含：inquilines。这些昆虫，也是食蟹猴，以胆汁组织为食，是一个丰富的，但分类学上知之甚少的一部分，否则研究系统。我们使用DNA序列数据来研究的空间格局的遗传多样性ofSynergus umbraculusOlivier 1791（Hyplutera：Cynipidae：Synergini），一个广泛的物种攻击许多寄主虫瘿横跨西部古北界。对239个细胞色素序列的分析显示，8个单倍型群在整个西古北界显示出显著的地理分布格局，对应于伊比利亚、中欧、土耳其和伊朗的假定冰川避难所。在比利牛斯山脉和安纳托利亚对角线有显着的遗传不连续性，但没有阿尔卑斯山的影响，这表明显着的不连续性有生物，而不是物理原因。对喀尔巴阡盆地遗址的详细分析揭示了高多样性和低空间结构，并确定中欧是德国、法国和英国第四纪殖民者的来源。我们没有发现宿主相关分化的证据。umbraculuslineages与最常见的cynipid宿主虫瘿，表明频繁的变化内的主机虫瘿组合inquiline谱系。
Insect-induced galls on plants comprise species-rich but self-contained communities of herbivores and natural enemies. In the present study, we focus on galls induced by cynipid gall wasps on oaks, and on the least-known trophic level that these galls contain: inquilines. These insects, also cynipids, feed on gall tissue and are an abundant but taxonomically poorly understood part of an otherwise well-studied system. We used DNA sequence data to examine spatial patterns in the genetic diversity ofSynergus umbraculusOlivier 1791 (Hymenoptera: Cynipidae: Synergini), a widespread species attacking many host galls across the Western Palaearctic. Analysis of 239 cytochromebsequences revealed eight haplogroups showing significant phylogeographic pattern across the Western Palaearctic, corresponding to putative glacial refugia in Iberia, Central Europe, Turkey, and Iran. There were significant genetic discontinuities across the Pyrenees and the Anatolian diagonal but no impact of the Alps, suggesting that significant discontinuities have biotic rather than physical causes. Detailed analysis of sites in the Carpathian Basin reveal a high diversity and low spatial structure, and identify Central Europe as the source of colonists for Quaternary colonization of Germany, France, and Britain. We found no evidence for host-associated differentiation ofS. umbraculuslineages associated with the most common cynipid host galls, suggesting frequent shifts within the host gall assemblage by inquiline lineages.