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Publication Overview
Title | Low levels of nucleotide diversity at homoeologous Adh loci in allotetraploid cotton (Gossypium L.). |
Authors | Small RL; Ryburn JA; Wendel JF |
Type | Journal Article |
Journal Name | Molecular Biology and Evolution |
Volume | 16 |
Issue | (4) |
Year | 1999 |
Page(s) | 491 501 |
Citation | Small RL, Ryburn JA, Wendel JF. Low levels of nucleotide diversity at homoeologous Adh loci in allotetraploid cotton (Gossypium L.). Molecular biology and evolution. 1999 Apr; 16(4):491-501. |
Publication Code | MBE-16-491 |
Abstract
Levels of genetic diversity within and among populations and species are shaped by both external (population-level) and internal (genomic and genic) evolutionary forces. To address the effect of internal pressures, we estimated nucleotide diversity for a pair of homoeologous Adh loci in an allotetraploid species, Gossypium hirsutum. These data represent the first such estimates for a pair of homoeologous nuclear loci in plants. Estimates of nucleotide diversity for AdhA in Gossypium are lower than those for any plant nuclear gene yet described. This low diversity appears to reflect primarily a history of repeated, severe genetic bottlenecks associated with both speciation and recent domestication, supplemented by an unusually slow nucleotide substitution rate and an autogamous breeding system. While not statistically supportable, the sum of the observations also suggest differential evolutionary dynamics at each of the homoeologous loci.
Features
This publication contains information about 58 features:
Pages
Image
File Name | Legend |
156_phylogenetic-1999.jpg | Composite phylogenetic hypothesis for the genus Gossypium based on analyses of multiple molecular data sets. [Image from Small et al., 1999, MBE-16-491] |
156_phylogenetic-1999.jpg | Composite phylogenetic hypothesis for the genus Gossypium based on analyses of multiple molecular data sets. [Image from Small et al., 1999, MBE-16-491] |
Properties
Additional
details for this publication include:
Property Name | Value |
Publication Type | Journal Article |
Publication Model | Print |
Publication Date | 1999 Apr |
Language Abbr | eng |
Journal Country | UNITED STATES |
Journal Abbreviation | Mol. Biol. Evol. |
ISSN | 0737-4038 |
Published Location | 491 501 |
eISSN | 1537-1719 |
Journal Code | MBE |
Language | English |
pISSN | 0737-4038 |
Publication Code | MBE-16-491 |
Published Location | United States |
Keywords | Alcohol Dehydrogenase/*genetics; Base Sequence; DNA Primers/genetics; DNA, Plant/genetics; Evolution, Molecular; Genetic Variation; Gossypium/*enzymology/*genetics; Models, Genetic; Molecular Sequence Data; Mutation; Phylogeny; Polymorphism, Genetic; Polyploidy; Recombination, Genetic; Sequence Homology, Nucleic Acid; alcohol dehydrogenase; cotton; gossypium; homoeology; nucleotide diversity; alcohol-dehydrogenase gene; plant nuclear genes; arabidopsis-thaliana; DNA polymorphism; statistical tests; drosophila-melanogaster; molecular evolution; recombination; substitution; populations |
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