Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula

Krosch, Matthew N., Schutze, Mark K., Armstrong, Karen F., Boontop, Yuvarin, Boykin Laura, M., Chapman, Toni A., Englezou, Anna, Cameron, Stephen L. and Clarke, Anthony R. (2013) Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula. Systematic Entomology, 38 1: 2-13. doi:10.1111/j.1365-3113.2012.00643.x


Author Krosch, Matthew N.
Schutze, Mark K.
Armstrong, Karen F.
Boontop, Yuvarin
Boykin Laura, M.
Chapman, Toni A.
Englezou, Anna
Cameron, Stephen L.
Clarke, Anthony R.
Title Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula
Formatted title
Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula
Journal name Systematic Entomology   Check publisher's open access policy
ISSN 0307-6970
1365-3113
Publication date 2013-01-01
Year available 2012
Sub-type Article (original research)
DOI 10.1111/j.1365-3113.2012.00643.x
Open Access Status Not Open Access
Volume 38
Issue 1
Start page 2
End page 13
Total pages 12
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Formatted abstract
Bactrocera dorsalis (Hendel) and B. papayae Drew & Hancock represent a closely related sibling species pair for which the biological species limits are unclear; i.e. it is uncertain if they are truely two biological species, or one biological species which has been incorrectly split taxonomically. The geographical ranges of the two taxa are thought to abut or overlap on or around the Isthmus of Kra, a recognised biogeographic barrier located on the narrowest portion of the Thai Peninsula. We collected fresh material of B. dorsalis s.l. (i.e. B. dorsalis s.s. + B. papayae) in a north–south transect down the Thai Peninsula, from areas regarded as being exclusively B. dorsalis s.s., across the Kra Isthmus, and into regions regarded as exclusively B. papayae. We carried out microsatellite analyses and took measurements of male genitalia and wing shape, both used previously to separate the taxa. No significant population structuring was found in the microsatellite analysis, consistent with one, predominantly panmictic population. Both morphological datasets showed consistent, clinal variation along the transect, without disjunction. No evidence supported historical vicariance driven by the Isthmus of Kra, and no dataset supported the current taxonomy of two species. Rather, within and across the area of range overlap or abutment between the two species, only continuous morphological and genetic variation was recorded. Recognition that morphological traits previously used to separate these taxa are continuous, and that there is no genetic evidence for population segregation in the region of suspected species overlap, is consistent with a growing body of literature that reports no evidence of biological differentiation between these taxa.
Keyword Bactrocera dorsalis
Diptera
Isthmus of Kra
Fly
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online 7 August 2012

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Water in the Minerals Industry
Non HERDC
 
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Created: Sat, 26 Oct 2013, 02:14:09 EST by Matthew Krosch on behalf of Centre for Water in the Minerals Industry