Multiple paternity in the unisexual, haploid, leafy liverwort Porella platyphylloidea
Wyatt, Robert ; Odrzykoski, Ireneusz J. and Cronberg, Nils LU
(2022)
In Bryologist
125(2).
p.337-343
- Abstract
We used isozyme markers to obtain an estimate of multiple paternity (mating of females with multiple males) in the unisexual, haploid leafy liverwort Porella platyphylloidea. From a sample of 119 plants, 15 (12.6%) were non-sex-expressing, 16 (13.4%) were females without sporophytes, 38 (31.9%) were males, and 50 (42.0%) were females bearing sporophytes. Thus, 87.4% of all plants expressed sex, and 73.5% of females bore sporophytes. The overall observed sex ratio was female-biased at 1.74:1. We extracted a total of 121 sporophytes from the 50 fertile females. Using the strict criterion that only female plants bearing two or more sporophytes with different multilocus genotypes represent cases of multiple paternity, our overall estimate... (More)
We used isozyme markers to obtain an estimate of multiple paternity (mating of females with multiple males) in the unisexual, haploid leafy liverwort Porella platyphylloidea. From a sample of 119 plants, 15 (12.6%) were non-sex-expressing, 16 (13.4%) were females without sporophytes, 38 (31.9%) were males, and 50 (42.0%) were females bearing sporophytes. Thus, 87.4% of all plants expressed sex, and 73.5% of females bore sporophytes. The overall observed sex ratio was female-biased at 1.74:1. We extracted a total of 121 sporophytes from the 50 fertile females. Using the strict criterion that only female plants bearing two or more sporophytes with different multilocus genotypes represent cases of multiple paternity, our overall estimate is 56.8% (46 out of 81). Spearman rank-order correlation coefficients revealed that plants growing lower on trees were significantly larger than those higher on the tree and that female plants were significantly larger than male plants. Multivariate analysis showed, however, that the primary determinant underlying these correlations was the larger mean size of females.
(Less)
- author
- Wyatt, Robert
; Odrzykoski, Ireneusz J.
and Cronberg, Nils
LU
- organization
- publishing date
- 2022-04-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- isozymes, Polyandry, Porella platyphylla, sex ratio, sporophyte production
- in
- Bryologist
- volume
- 125
- issue
- 2
- pages
- 337 - 343
- publisher
- AMER BRYOLOGICAL LICHENOLOGICAL SOCIETY INC
- external identifiers
-
- scopus:85133960996
- ISSN
- 0007-2745
- DOI
- 10.1639/0007-2745-125.2.337
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: Copyright ©2022 by The American Bryological and Lichenological Society, Inc.
- id
- 874e0df4-e70a-4a20-bf03-261f4ef134ec
- date added to LUP
- 2022-08-31 12:20:57
- date last changed
- 2024-05-16 15:57:38
@article{874e0df4-e70a-4a20-bf03-261f4ef134ec,
abstract = {{<p>We used isozyme markers to obtain an estimate of multiple paternity (mating of females with multiple males) in the unisexual, haploid leafy liverwort Porella platyphylloidea. From a sample of 119 plants, 15 (12.6%) were non-sex-expressing, 16 (13.4%) were females without sporophytes, 38 (31.9%) were males, and 50 (42.0%) were females bearing sporophytes. Thus, 87.4% of all plants expressed sex, and 73.5% of females bore sporophytes. The overall observed sex ratio was female-biased at 1.74:1. We extracted a total of 121 sporophytes from the 50 fertile females. Using the strict criterion that only female plants bearing two or more sporophytes with different multilocus genotypes represent cases of multiple paternity, our overall estimate is 56.8% (46 out of 81). Spearman rank-order correlation coefficients revealed that plants growing lower on trees were significantly larger than those higher on the tree and that female plants were significantly larger than male plants. Multivariate analysis showed, however, that the primary determinant underlying these correlations was the larger mean size of females.</p>}},
author = {{Wyatt, Robert and Odrzykoski, Ireneusz J. and Cronberg, Nils}},
issn = {{0007-2745}},
keywords = {{isozymes; Polyandry; Porella platyphylla; sex ratio; sporophyte production}},
language = {{eng}},
month = {{04}},
number = {{2}},
pages = {{337--343}},
publisher = {{AMER BRYOLOGICAL LICHENOLOGICAL SOCIETY INC}},
series = {{Bryologist}},
title = {{Multiple paternity in the unisexual, haploid, leafy liverwort Porella platyphylloidea}},
url = {{http://dx.doi.org/10.1639/0007-2745-125.2.337}},
doi = {{10.1639/0007-2745-125.2.337}},
volume = {{125}},
year = {{2022}},
}