Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers

[img]PDF - Authorized users only
Language: English
288Kb
Title:Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers
Creators:
Parkes, K.A.
Amos, W.
Moore, N.W.
Hoffman, J.I.
Moore, J.
Journal or Publication Title:
European Journal of Entomology, 106, 2, pp. 179-184
Uncontrolled Keywords:Gene flow, STRUCTURE, morphotypes, dragonfly, Odonata,

Abstract

There has been a long-standing debate as to whether (Charpentier, 1840) and the darker northern form, (Lucas, 1912) should be recognised as separate species of dragonfly. Here we address this question using genetic analysis based on AFLP markers and samples collected from sites across the species’ United Kingdom range. The program STRUCTURE finds no support for specific status. Instead, it reveals strong patterns of divergence between populations sampled from Scottish islands and those on the mainland, suggesting that salt water is a major barrier to gene flow. Thus, the dark form is quite likely to reflect a beneficial polymorphism that allows individuals to take advantage of short periods of warmer weather. Our AFLP markers appear to be very rapidly evolving, showing little or no overlap between congeneric species, and hence are ideally suited to answering questions relating to the levels of gene flow among populations within species.

Official URL: http://www.eje.cz/scripts/viewabstract.php?abstract=1439

Title:Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers
Original title:Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers
Creators:
Parkes, K.A.
Amos, W.
Moore, N.W.
Hoffman, J.I.
Moore, J.
Uncontrolled Keywords:Gene flow, STRUCTURE, morphotypes, dragonfly, Odonata,
Subjects:Q Science > QL Zoology
Divisions:Life and Chemical Sciences > Biology Centre > Institute of Entomology > European Journal of Entomology
Journal or Publication Title:European Journal of Entomology
Volume:106
Number:2
Page Range:pp. 179-184
ISSN:1210-5759
Publisher:Institute of Entomology of the Czech Academy of Sciences and the Czech Entomological Society
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/32Publisher
ID Code:450
Item Type:Article
Deposited On:19 Oct 2009 17:41
Last Modified:19 Oct 2009 15:41

Citation

Parkes, K.A.; Amos, W.; Moore, N.W.; Hoffman, J.I.; Moore, J. (2009) Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers. European Journal of Entomology, 106 (2). pp. 179-184. ISSN 1210-5759

Repository Staff Only: item control page