期刊
MEDICAL AND VETERINARY ENTOMOLOGY
卷 23, 期 1, 页码 6-14出版社
WILEY
DOI: 10.1111/j.1365-2915.2008.00765.x
关键词
Lucilia; 28S; cytochrome oxidase I; hybridization; morphology; phylogenetic incongruence
资金
- Rhodes University's Joint Research Committee
- South Africa's National Research Foundation
Complementary nuclear (28S rRNA) and mitochondrial (COI) genes were sequenced from blowflies that phenotypically resembled Lucilia cuprina (W.), Lucilia sericata (Meigen) or exhibited characters of both species. The aim was to test a long-held hypothesis that these species hybridize under natural conditions in South Africa (Ullyett, 1945). Blowflies were obtained predominantly from the Cape Town metropolitan area, but reference samples were acquired for L. sericata from Pretoria. Several L. cuprina-like flies were shown to possess a conflicting combination of nuclear and mitochondrial genes that has also been seen in Hawaiian specimens. Homoplasy, sampling of pseudogenes, hybridization and incomplete lineage sorting are discussed as possible hypotheses for the pattern and the latter is concluded to represent the most likely explanation.
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