Abstract
In the grasshopper Podisma pedestris, units of the ribosomal DNA (rDNA) multigene family are not identical, but comprise multiple genetic variants. We surveyed this variation using a novel pyrosequencing approach. The history of the study populations is well characterized as the pattern of colonization can be inferred from the distribution of two chromosomal races that invaded from different directions after the last glacial maximum and finally met to form a hybrid zone. This knowledge of the populations' ancestry allows us to draw inferences about the rate of change in rDNA composition. The rDNA data have, in turn, been revealing about the populations' ancestry, indicating a previously unsuspected route of postglacial colonization. The two chromosomal races were found to have genetically distinctive rDNA composition, demonstrating the persistence of differences for thousands of generations. It follows that the hybrid zone represents a natural experiment in which repeated crossing and backcrossing between these different rDNA lineages has occurred for over 8000 generations. The association between chromosomal race and rDNA composition has been broken down within the zone. It therefore appears that rDNA variants move freely acro...Continue Reading
References
Jan 1, 1972·Chromosoma·G M Hewitt, B John
Jul 1, 1983·Proceedings of the National Academy of Sciences of the United States of America·T Ohta, G A Dover
Sep 1, 1995·The Quarterly Review of Biology·J F Elder, B J Turner
Dec 1, 1995·Genetics·T J Crease
Jan 23, 1999·American Journal of Human Genetics·D Liao
Jun 1, 2000·Molecular Biology and Evolution·T PupkoD Graur
May 18, 2001·FEMS Microbiology Letters·H MonsteinJ Jonasson
Nov 28, 2002·Molecular Ecology·Jason T RauscherA H D Brown
Feb 18, 2003·APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica·Maria TärnbergUrban Forsum
Sep 25, 2003·International Journal of Medical Microbiology : IJMM·Maria KolakJon Jonasson
Nov 15, 2003·Molecular Phylogenetics and Evolution·I Alvarez, J F Wendel
Dec 26, 2003·Human Mutation·Catharina LavebrattMartin Schalling
Jan 7, 2004·Annals of Botany·Gonzalo Nieto FelinerJavier Fuertes Aguilar
May 25, 2004·Molecular Biology and Evolution·Emma J Parkin, Roger K Butlin
Nov 8, 2005·Proceedings. Biological Sciences·David M ShukerRoger K Butlin
Sep 5, 2006·Genetics·Irene KellerRichard A Nichols
Feb 27, 2007·Genetics·Thomas H Eickbush, Danna G Eickbush
Citations
Apr 23, 2009·Heredity·P VeltsosR A Nichols
Apr 29, 2010·Heredity·R PiñeiroG Nieto Feliner
Sep 22, 2009·Applied and Environmental Microbiology·Justyna WolinskaHenrike Koerner
Jan 18, 2013·BMC Genomics·Mikhail OzerovJuha-Pekka Vähä
Sep 15, 2010·Frontiers in Zoology·Michael J RaupachJohann-Wolfgang Wägele
Oct 23, 2013·PloS One·Holly M BikW Kelley Thomas
May 14, 2011·Molecular Ecology Resources·M R GarvinA J Gharrett
Aug 14, 2013·Molecular Ecology Resources·Sabine Giessler, Justyna Wolinska
Jan 8, 2015·Insect Molecular Biology·M Ruiz-EstévezJ P M Camacho
Nov 10, 2013·Acta Tropica·James L CraineySérgio L B Luz
Sep 28, 2013·Molecular Phylogenetics and Evolution·Ioana C Chintauan-MarquierLaure Desutter-Grandcolas
May 11, 2011·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Christian RellstabJukka Jokela
Nov 4, 2016·Molecular Ecology·Beniamino CaputoDavid Weetman
Oct 21, 2015·PloS One·Inga MohrbeckSilke Laakmann
Nov 4, 2010·Journal of Evolutionary Biology·J WolinskaS Giessler
Oct 16, 2021·Molecular Ecology·Joaquín Ortego, L Lacey Knowles