The effective size of bryophyte populations.
Bengtsson, Bengt Olle LU and Cronberg, Nils LU
(2009)
In Journal of Theoretical Biology
258(Available online 8 January 2009).
p.121-126
- Abstract
- Bryophytes with their dominant haploid stage conform poorly to the life cycles generally treated in population genetical models. Here we make a detailed analysis of what effective sizes bryophyte model populations have as a function of their breeding system. It is found that the effective size is rarely much smaller than the scored number of haploid gametophytic individuals, even when the limited number of diploids (sporophytes) formed is taken into account. The most severe decrease in effective size occurs when unisexual gametophytic females produce only a small number of fertile diploid sporophytes in male biased populations; this effect is due to the restricted sampling of male gametophytic individuals that then occurs. It is shown that... (More)
- Bryophytes with their dominant haploid stage conform poorly to the life cycles generally treated in population genetical models. Here we make a detailed analysis of what effective sizes bryophyte model populations have as a function of their breeding system. It is found that the effective size is rarely much smaller than the scored number of haploid gametophytic individuals, even when the limited number of diploids (sporophytes) formed is taken into account. The most severe decrease in effective size occurs when unisexual gametophytic females produce only a small number of fertile diploid sporophytes in male biased populations; this effect is due to the restricted sampling of male gametophytic individuals that then occurs. It is shown that the harmonic mean of diploid sporophytes formed per haploid gametophytic individuals is the relevant measure in these calculations and not the standard (and generally larger) arithmetic mean. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1289242
- author
- Bengtsson, Bengt Olle
LU
and Cronberg, Nils
LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Breeding system Intragametophytic selfing Asexuality Coalescence
- in
- Journal of Theoretical Biology
- volume
- 258
- issue
- Available online 8 January 2009
- pages
- 121 - 126
- publisher
- Academic Press
- external identifiers
-
- wos:000265312800013
- scopus:63549111756
- ISSN
- 1095-8541
- DOI
- 10.1016/j.jtbi.2009.01.002
- language
- English
- LU publication?
- yes
- id
- 1c25fda6-92d9-4b3e-8068-08236a30c7b2 (old id 1289242)
- date added to LUP
- 2016-04-01 13:47:01
- date last changed
- 2025-04-04 13:56:21
@article{1c25fda6-92d9-4b3e-8068-08236a30c7b2,
abstract = {{Bryophytes with their dominant haploid stage conform poorly to the life cycles generally treated in population genetical models. Here we make a detailed analysis of what effective sizes bryophyte model populations have as a function of their breeding system. It is found that the effective size is rarely much smaller than the scored number of haploid gametophytic individuals, even when the limited number of diploids (sporophytes) formed is taken into account. The most severe decrease in effective size occurs when unisexual gametophytic females produce only a small number of fertile diploid sporophytes in male biased populations; this effect is due to the restricted sampling of male gametophytic individuals that then occurs. It is shown that the harmonic mean of diploid sporophytes formed per haploid gametophytic individuals is the relevant measure in these calculations and not the standard (and generally larger) arithmetic mean.}},
author = {{Bengtsson, Bengt Olle and Cronberg, Nils}},
issn = {{1095-8541}},
keywords = {{Breeding system
Intragametophytic selfing
Asexuality
Coalescence}},
language = {{eng}},
number = {{Available online 8 January 2009}},
pages = {{121--126}},
publisher = {{Academic Press}},
series = {{Journal of Theoretical Biology}},
title = {{The effective size of bryophyte populations.}},
url = {{http://dx.doi.org/10.1016/j.jtbi.2009.01.002}},
doi = {{10.1016/j.jtbi.2009.01.002}},
volume = {{258}},
year = {{2009}},
}