TY - JOUR
T1 - Two sisters in the same dress
T2 - Heliconius cryptic species
AU - Giraldo, Nathalia
AU - Salazar, Camilo
AU - Jiggins, Chris D.
AU - Bermingham, Eldredge
AU - Linares, Mauricio
N1 - Funding Information:
We would like to thank Maribel González and Carlos Arias at the Smithso-nian Tropical Research Institute for laboratory help with microsatellites and mtDNA amplification and Fernando Alda for help in microsatellite scoring and analysis. We also thank Mathieu Joron and Jesus Mavarez for ongoing discussion of cryptic species in the eastern Andes and for the original suggestion that these might represent sub-species of H. timareta. James Mallet, Gerardo Lamas and Jean François Le Crom for photographs of H. timareta from Ecuador and Perú and H. tristero. Ministerio del Ambiente of Ecuador for collecting permitions. This work was carried out with grants from the Smithsonian Tropical Research Institute (NG), Instituto Colombiano para el Desarrollo de la Ciencia y la Tecnología Francisco José de Caldas COL-CIENCIAS 7155-CO (CS), Biotechnology and Biological Sciences Research Council and the Royal Society (CDJ), Banco de la República (ML and NG) and private donations (ML) from Continautos S.A., Proficol El Carmen S.A., Didacol S.A. and F. Arango, Colombia.
PY - 2008
Y1 - 2008
N2 - Background. Sister species divergence and reproductive isolation commonly results from ecological adaptation. In mimetic Heliconius butterflies, shifts in colour pattern contribute to pre- and post-mating reproductive isolation and are commonly correlated with speciation. Closely related mimetic species are therefore not expected, as they should lack several important sources of reproductive isolation. Results. Here we present phenotypic, behavioral and genetic evidence for the coexistence of two sympatric 'cryptic' species near Florencia in the eastern Andes of Colombia that share the same orange rayed colour pattern. These represent H. melpomene malleti and a novel taxon in the H. cydno group, here designated as novel race of Heliconius timareta, Heliconius timareta florencia. No-choice mating experiments show that these sympatric forms have strong assortative mating (≈96%) despite great similarity in colour pattern, implying enhanced divergence in pheromonal signals. Conclusion. We hypothesize that these species might have resulted from recent convergence in colour pattern, perhaps facilitated by hybrid introgression of wing pattern genes.
AB - Background. Sister species divergence and reproductive isolation commonly results from ecological adaptation. In mimetic Heliconius butterflies, shifts in colour pattern contribute to pre- and post-mating reproductive isolation and are commonly correlated with speciation. Closely related mimetic species are therefore not expected, as they should lack several important sources of reproductive isolation. Results. Here we present phenotypic, behavioral and genetic evidence for the coexistence of two sympatric 'cryptic' species near Florencia in the eastern Andes of Colombia that share the same orange rayed colour pattern. These represent H. melpomene malleti and a novel taxon in the H. cydno group, here designated as novel race of Heliconius timareta, Heliconius timareta florencia. No-choice mating experiments show that these sympatric forms have strong assortative mating (≈96%) despite great similarity in colour pattern, implying enhanced divergence in pheromonal signals. Conclusion. We hypothesize that these species might have resulted from recent convergence in colour pattern, perhaps facilitated by hybrid introgression of wing pattern genes.
UR - http://www.scopus.com/inward/record.url?scp=60049084178&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=60049084178&partnerID=8YFLogxK
U2 - 10.1186/1471-2148-8-324
DO - 10.1186/1471-2148-8-324
M3 - Research Article
C2 - 19040737
AN - SCOPUS:60049084178
SN - 1471-2148
VL - 8
JO - BMC Evolutionary Biology
JF - BMC Evolutionary Biology
IS - 1
M1 - 324
ER -