Genetic Structure of Sympatric Sexually and Parthenogenetically Reproducing Population of Chara canescens (Charophyta)
Joint Authors
Bergmann, Ingo
Schaible, Ralf
Schubert, Hendrik
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-28
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Earth Science , Water and Environment
Abstract EN
Individuals that reproduce parthenogenetically do not have to produce males and can therefore produce twice as many female offspring.
With this twofold reproduction advantage of asexual reproduction, the question of how sex persists in the short term remains unresolved.
In the dioecious charophyte Chara canescens, both parthenogenetically reproducing females and sexually reproducing females and males occur sympatrically at only one site in Europe: Neusiedler See-Seewinkel (Austria).
By means of four nuclear species-specific microsatellite loci, we examined the interaction between coexisting sexuals and parthenogens by analysing the population structure and gene flow between both reproduction systems.
Using a Bayesian assignment method, we found that the sites encompassed two genetically distinct clusters of individuals.
The first cluster included genotypes of sexual individuals, which are genetically distinct from a second cluster which included parthenogenetic individuals and few sexually reproducing males, which are genetically identical to the parthenogenetic individuals.
However, an analysis of the population genetic structure found no differences with respect to genotypic variation, clonal diversity, and population differentiation between the sympatric parthenogenetically and the sexually reproducing populations.
The results indicated that the parthenogenetic individuals cannot outcompete the sexually reproducing individuals.
American Psychological Association (APA)
Schaible, Ralf& Bergmann, Ingo& Schubert, Hendrik. 2011. Genetic Structure of Sympatric Sexually and Parthenogenetically Reproducing Population of Chara canescens (Charophyta). ISRN Ecology،Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-476625
Modern Language Association (MLA)
Schaible, Ralf…[et al.]. Genetic Structure of Sympatric Sexually and Parthenogenetically Reproducing Population of Chara canescens (Charophyta). ISRN Ecology No. 2011 (2011), pp.1-13.
https://search.emarefa.net/detail/BIM-476625
American Medical Association (AMA)
Schaible, Ralf& Bergmann, Ingo& Schubert, Hendrik. Genetic Structure of Sympatric Sexually and Parthenogenetically Reproducing Population of Chara canescens (Charophyta). ISRN Ecology. 2011. Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-476625
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476625