How to translate text using browser tools
3 May 2022 Multiple paternity in the unisexual, haploid, leafy liverwort Porella platyphylloidea
Robert Wyatt, Ireneusz J. Odrzykoski, Nils Cronberg
Author Affiliations +

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.

Copyright ©2022 by The American Bryological and Lichenological Society, Inc.
Robert Wyatt, Ireneusz J. Odrzykoski, and Nils Cronberg "Multiple paternity in the unisexual, haploid, leafy liverwort Porella platyphylloidea," The Bryologist 125(2), 337-343, (3 May 2022).
Received: 2 February 2022; Accepted: 26 March 2022; Published: 3 May 2022
Porella platyphylla
sex ratio
sporophyte production
Get copyright permission
Back to Top