Two nuclear genes yield concordant relationships within Attacini (Lepidoptera: Saturniidae)
Two nuclear genes yield concordant relationships within Attacini (Lepidoptera: Saturniidae)
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DOI：
10.1006/mpev.1997.9999
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发表时间：
1998-02-01
影响因子：
4.1
通讯作者：
Fang, QQ
中科院分区：
文献类型：
--
作者：
Friedlander, TP;Horst, KR;Fang, QQ
To extend initial characterizations of their phylogenetic utility, sequences from the nuclear genes for elongation factor-1 alpha (EF-1 alpha) and dopa decarboxylase (DDC) are tested for phylogenetic concordance with each other and with previous morphological evidence within the giant silk moth tribe Attacini (Lepidoptera: Saturniidae). The sampling of DDC is expanded from the 690 basepairs of previous studies to 1051 basepairs in the current study. All nine attacine genera are sampled. EF-1 alpha and DDC agree in the placement of seven of nine genera, with placement of the other two not in strong conflict. Combination of the gene sequences results in a nearly fully resolved tree that is consistent with EF-1 alpha alone and agrees with morphology in five of eight groups. Conflict between molecules and morphology is confined to deeper-level relationships within Attacini, where node support for the molecular hypotheses, but not the morphological hypotheses, is generally very strong. A strong signal is contributed by synonymous substitutions in both genes, and by nonsynonymous change particularly in DDC. The molecular phylogeny supports a revision of attacine biogeography in that neither East Asian nor New World genera form monophyletic groups. (C) 1998 Academic Press.
