Chromosomal evolution in tortricid moths: Conserved karyotypes with diverged features

0392568 - BC 2014 RIV US eng J - Journal Article
Šíchová, Jindra - Nguyen, Petr - Dalíková, Martina - Marec, František
Chromosomal evolution in tortricid moths: Conserved karyotypes with diverged features.
PLoS ONE. Roč. 8, č. 5 (2013), e64520. ISSN 1932-6203. E-ISSN 1932-6203
R&D Projects: GA ČR GA523/09/2106; GA AV ČR IAA600960925
Grant - others:GA JU(CZ) GAJU 059/2010/P; GA JU(CZ) GAJU137/2010/P; IAEA, Viennna(AT) 15838
Institutional support: RVO:60077344
Keywords : tortricid moths
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 3.534, year: 2013
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0064520

We performed detailed cytogenetic analysis of Grapholita molesta, G. funebrana, Lobesia botrana (all Olethreutinae), and Eupoecilia ambiguella (Tortricinae). Besides standard methods, we used FISH for mapping of major rRNA and histone gene clusters and CGH to determine molecular differentiation of the WZ sex chromosomes. Our results in combination with available data in other tortricids allow us a comprehensive reconstruction of chromosomal evolution across the family Tortricidae. The emerging picture is that the karyotype of a common ancestor of Tortricinae and Olethreutinae differentiated from the ancestral chromosome print of n = 31 by a sex chromosome-autosome fusion. This rearrangement resulted in a large neo-sex chromosome pair and a karyotype with n = 30 conserved in most Tortricinae species, which was further reduced to n = 28 observed in Olethreutinae. Our analysis also revealed conservative pattern of the histone distribution, which is in contrast with high rDNA mobility.
Permanent Link: http://hdl.handle.net/11104/0222724