Home LiteratureArticle Details
PMID: 11158370 Published · ppublish English Comparative Study Journal Article Research Support, Non-U.S. Gov't

Three divergent rDNA clusters predate the species divergence in Quercus petraea (Matt.) Liebl. and Quercus robur L.

Molecular biology and evolution ·Vol. 18 ·No. 2 ·2001-02-00 ·Pages 112-9

Muir G, Fleming CC, Schlötterer C

Abstract

Quercus petraea and Quercus robur are two closely related oak species that frequently hybridize. We sequenced 70 clones containing the 5.8S and ITS2 regions of ribosomal DNA (rDNA) from these two species and did not detect a species-specific difference. Surprisingly, three divergent (up to 12.6%) rDNA families were identified in both species, indicating that they predate the speciation event. Despite a large between-rDNA-families divergence, rDNA sequences were very similar within families, suggesting ongoing concerted evolution. Expression analysis, relative-rate tests, and mutation spectrum analyses indicated that only a single rDNA family is functional. We propose that past hybridization events, combined with nucleolar dominance, were the evolutionary processes underlying the contemporary rDNA variability in Q. petraea and Q. robur.

MeSH Terms
Base Sequence Biological Evolution Cloning, Molecular Conserved Sequence DNA Primers/chemistry DNA, Plant DNA, Ribosomal Genetic Variation/genetics Methylation Molecular Sequence Data Mutation Phylogeny Polymorphism, Genetic Recombination, Genetic Reverse Transcriptase Polymerase Chain Reaction Sequence Analysis, DNA Sequence Homology, Nucleic Acid Trees/genetics
Chemicals
DNA Primers DNA, Plant DNA, Ribosomal
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Muir G
Department of Applied Plant Science, The Queen's University of Belfast, Belfast, N. Ireland.
Fleming C C
Schlötterer C
Article Info
Journal
Molecular biology and evolution
Abbr.
Mol Biol Evol
ISSN
0737-4038
DOI
10.1093/oxfordjournals.molbev.a003785
Published
2001-02-00
Pages
112-9
Language
English
Region
United States
NLM ID
8501455
Subset
IM
Databases
GENBANK
AF248354, AF248355, AF248356, AF248357, AF248358, AF248359, AF248360, AF248361, AF248362, AF248363, AF248364, AF248365, AF248366, AF248367, AF248368, AF248369, AF248370, AF248371, AF248372, AF248373, AF248374, AF248375, AF248376, AF248377, AF248378, AF248379, AF248380, AF248381, AF248382, AF248383, AF248384, AF248385, AF248386, AF248387, AF248388, AF248389, AF248390, AF248391, AF248392, AF248393, AF248394, AF248395, AF248396, AF248397, AF248398, AF248399, AF248400, AF248401, AF248402, AF248403, AF248404, AF248405, AF248406, AF248407, AF248408, AF248409, AF248410, AF248411, AF248412, AF248413, AF248414, AF248415, AF248416, AF248417, AF248418, AF248419, AF248420, AF248421, AF248422, AF248423, AF248424, AF248425
External Links
PubMed source DOI: 10.1093/oxfordjournals.molbev.a003785 View journal details
Analysis Services
Analysis Services

Contact

No. 2 Wenbo Road, Zhangqiu District, Jinan, Shandong

Qilu Normal University · Genelibs Bioinformatics Lab

750 Shunhua Rd, Jinan

2F, Bldg F, University Science Park

Tel: 0531-88819269

WeChat Official Account

Follow our WeChat subscription account for real-time updates and the latest in medical and biological research.


Business Email

E-mail: [email protected]

Copyright © 2026.Genelibs Jinan Honghui Biotechnology Co., Ltd. 鲁ICP备20007159号-2