The spread of apomixis and its effect on resident genetic variation
(2007) In Journal of evolutionary biology 20(5). p.1933-1940- Abstract
- In a simulation model we investigated how much of the initial genetic variation that is retained in a population after a dominant mutation has brought apomixis to fixation in it. A marker allele associated with the apomixis mutation is generally retained after the fixation of apomixis, particularly if the two alleles are closely linked. The spread of asexuality, however, normally leads to almost no loss of genetic variation, neither with respect to cytotypes nor with respect to genotypes. This holds for large populations and apomixis mutants with strong pollen production. In smaller populations, and with apomicts with reduced pollen production, the outcome is more variable, ranging from no genetic variation retained to only weakly reduced... (More)
- In a simulation model we investigated how much of the initial genetic variation that is retained in a population after a dominant mutation has brought apomixis to fixation in it. A marker allele associated with the apomixis mutation is generally retained after the fixation of apomixis, particularly if the two alleles are closely linked. The spread of asexuality, however, normally leads to almost no loss of genetic variation, neither with respect to cytotypes nor with respect to genotypes. This holds for large populations and apomixis mutants with strong pollen production. In smaller populations, and with apomicts with reduced pollen production, the outcome is more variable, ranging from no genetic variation retained to only weakly reduced variability compared with the initial state. These results help explain the high genetic variability in many apomicts. They also imply that natural selection will have many genotypes to act on even after the spread of apomixis. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/688958
- author
- Adolfsson, S and Bengtsson, Bengt Olle LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- apomixis, genetic variation, cytotypes, asexual reproduction, GMO
- in
- Journal of evolutionary biology
- volume
- 20
- issue
- 5
- pages
- 1933 - 1940
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000249166200029
- scopus:34547882743
- ISSN
- 1420-9101
- DOI
- 10.1111/j.1420-9101.2007.01371.x
- language
- English
- LU publication?
- yes
- id
- 58c80a7d-d498-403d-8e70-b5fef75ad401 (old id 688958)
- date added to LUP
- 2016-04-01 12:34:40
- date last changed
- 2025-04-04 14:48:50
@article{58c80a7d-d498-403d-8e70-b5fef75ad401,
abstract = {{In a simulation model we investigated how much of the initial genetic variation that is retained in a population after a dominant mutation has brought apomixis to fixation in it. A marker allele associated with the apomixis mutation is generally retained after the fixation of apomixis, particularly if the two alleles are closely linked. The spread of asexuality, however, normally leads to almost no loss of genetic variation, neither with respect to cytotypes nor with respect to genotypes. This holds for large populations and apomixis mutants with strong pollen production. In smaller populations, and with apomicts with reduced pollen production, the outcome is more variable, ranging from no genetic variation retained to only weakly reduced variability compared with the initial state. These results help explain the high genetic variability in many apomicts. They also imply that natural selection will have many genotypes to act on even after the spread of apomixis.}},
author = {{Adolfsson, S and Bengtsson, Bengt Olle}},
issn = {{1420-9101}},
keywords = {{apomixis; genetic variation; cytotypes; asexual reproduction; GMO}},
language = {{eng}},
number = {{5}},
pages = {{1933--1940}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of evolutionary biology}},
title = {{The spread of apomixis and its effect on resident genetic variation}},
url = {{http://dx.doi.org/10.1111/j.1420-9101.2007.01371.x}},
doi = {{10.1111/j.1420-9101.2007.01371.x}},
volume = {{20}},
year = {{2007}},
}