Species Delimitation and Phylogenetic Relationships in Ectobiid Cockroaches (Dictyoptera, Blattodea) from China
نویسندگان
چکیده
We collected Ectobiidae cockroach specimens from 44 locations in the south of the Yangtze valley. We obtained 297 COI sequences specimens and carried out phylogenetic and divergence dating analyses, as well as species delimitation analysis using a General Mixed Yule Coalescent (GMYC) framework. The intraspecific and interspecific sequence divergence in Ectobiidae cockroaches ranged from 0.0 to 7.0% and 4.6 to 30.8%, respectively. GMYC analysis resulted in 53 (confidence interval: 37-65) entities (likelihood ratio = 103.63) including 14 downloaded species. The COI GMYC groups partly corresponded to the ectobiid species and 52 ectobiid species were delimited successfully based on the combination of GMYC result with morphological information. We used the molecular data and 6 cockroach fossil calibrations to obtain a preliminary estimate of the timescale of ectobiid evolution. The major subfamilies in the group were found to have diverged between ~125-110 Ma, and morphospecies pairs were found to have diverged ~10 or more Ma.
منابع مشابه
Death of an order: a comprehensive molecular phylogenetic study confirms that termites are eusocial cockroaches.
Termites are instantly recognizable mound-builders and house-eaters: their complex social lifestyles have made them incredibly successful throughout the tropics. Although known as 'white ants', they are not ants and their relationships with other insects remain unclear. Our molecular phylogenetic analyses, the most comprehensive yet attempted, show that termites are social cockroaches, no longe...
متن کاملEvolution and phylogenetic information content of the ribosomal DNA repeat unit in the Blattodea (Insecta).
The organization, structure, and nucleotide variability of the ribosomal repeat unit was compared among families, genera, and species of cockroaches (Insecta:Blattodea). Sequence comparisons and molecular phylogenetic analyses were used to describe rDNA repeat unit variation at differing taxonomic levels. A reverse similar 1200 bp fragment of the 28S rDNA sequence was assessed for its potential...
متن کاملUtility of mtDNA-COI Barcode Region for Phylogenetic Relationship and Diagnosis of Five Common Pest Cockroaches
BACKGROUND Cockroaches are of vital importance medically and hygienically as they can disperse human pathogenic agents and are especially responsible for food contamination and spreading of food borne pathogens. In this study, part of mtDNA-COI gene of five common pest cockroaches was tested for diagnostic and phylogenetic purposes. METHODS We have described barcode region of mtDNA-COI gene o...
متن کاملCockroaches of genus Muzoa: morphology of the male genital sclerites and description of one new species (Dictyoptera, Blattodea, Ectobiidae, Nyctiborinae)
The male genital sclerites of cockroaches of genus Muzoa Hebard 1921 are described for first time and the new species Muzoa curtalata sp. n. is described and ilustrated. A dichotomous key to identify the species of genus Muzoa is given.
متن کاملThe cockroaches of Balta Tepper from China, with the description of four new species (Blattodea, Ectobiidae, Pseudophyllodromiinae)
Four new species of cockroach genus Balta Tepper, 1893 are described and illustrated: B. crenasp. n., B. maculatasp. n., B. tangisp. n., and B. yaoisp. n.Balta picea (Bey-Bienko, 1958) is now regarded as a new synonym of Balta hwangorum (Bey-Bienko, 1958), which is redescribed and illustrated. Two new combinations are proposed: B. nodigera (Bey-Bienko, 1958), comb. n. and B. valida (Bey-Bienko,...
متن کامل