Systematics of the Argyrotaenia franciscana (Lepidoptera: Tortricidae) species group: evidence from mitochondrial DNA

Moths of the Argyrotaenia franciscana species group represent a challenging case of evolutionary lability and taxonomic complexity in California. We studied their evolutionary relationships using mitochondrial DNA (mtDNA) sequences from 49 specimens in 18 populations of the A. franciscana group, as...

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Bibliographic Details
Published in:Annals of the Entomological Society of America 1999, Vol.92 (1), p.40-46
Main Authors: Landry, B, Powell, J.A, Sperling, F.A.H
Format: Article
Language:English
Subjects:
Argyrotaenia
Argyrotaenia citrana
Argyrotaenia franciscana
chemotaxonomy
cytochrome oxidae ii
cytochrome oxidase i
cytochrome-c oxidase
genbank/af093681
genetic polymorphism
haplotypes
interspecific hybridization
mitochondrial DNA
molecular sequence data
nucleotide sequences
phylogeny
sequence divergence
Tortricidae
transfer RNA
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Summary:Moths of the Argyrotaenia franciscana species group represent a challenging case of evolutionary lability and taxonomic complexity in California. We studied their evolutionary relationships using mitochondrial DNA (mtDNA) sequences from 49 specimens in 18 populations of the A. franciscana group, as well as 2 outgroup species. Most specimens were sequenced over a 799-bp segment of the cytochrome oxidase subunit I (COI) gene. Single specimens each of A. franciscana insulana Powell and A. citrana (Fernald) were sequenced over a 2.3-kb region including COI, tRNA leucine (UUR), and cytochrome oxidase subunit II (COII). mtDNA variation within and among Argyrotaenia citrana, A. franciscana (Walsingham), and A. franciscana insulana is most simply interpreted as DNA polymorphism within a single species for which the oldest name is A. franciscana. Maximal divergence among haplotypes was 3.8%, which is on the high end of the range for intraspecific mtDNA variation in Lepidoptera. Argyrotaenia niscana (Kearfott) is most closely related to a new species, and this pair forms the closet outgroup to the A. franciscana-citrana complex. The status of A. isolatissima Powell remains uncertain.
ISSN:0013-8746
1938-2901
DOI:10.1093/aesa/92.1.40