ArticleHeredity2015
O father where art thou? Paternity analyses in a natural population of the haploid-diploid seaweed Chondrus crispus.
Article in Heredity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- The evolutionary ecology of reproduction in the red alga Palmaria palmata: Insights from an atypical life cycle.Journal of phycology · 2026Article
- A clonal legacy? Reproductive mode variation in hard- and soft-bottom Gracilaria vermiculophylla populations.Journal of phycology · 2026Article
- The hard and soft of it: The role of substrate in patterns of phase dominance and phenology in Gracilaria vermiculophylla.Journal of phycology · 2026Article
- Strong genetic differentiation and low genetic diversity in a habitat-forming fucoid seaweed (Cystophora racemosa) across 850 km of its range.Journal of phycology · 2025Article
- Seasonality and interannual stability in the population genetic structure of Batrachospermum gelatinosum (Rhodophyta).Journal of phycology · 2025Article
- Linking phenotypic variation to patterns of genetic isolation along a speciation continuum.Journal of phycology · 2025Article
- Population genetics of the freshwater red alga Batrachospermum gelatinosum (Rhodophyta) I: Frequent intragametophytic selfing in a monoicous, haploid-diploid species.Journal of phycology · 2024Article
- Evolution of parental care in haploid-diploid plants.Proceedings. Biological sciences · 2024Article
- Sexual selection in seaweed? Testing Bateman's principles in the red algaProceedings. Biological sciences · 2023Article
- Dispersal, kin aggregation, and the fitness consequences of not spreading sibling larvae.Ecology · 2023Article
- The Contribution of Clonality to Population Genetic Structure in the Sea Anemone, Diadumene lineata.The Journal of heredity · 2021Article
- Evolutionary Phycology: Toward a Macroalgal Species Conceptual Framework.Journal of phycology · 2020Article
- Inbreeding shapes the evolution of marine invertebrates.Evolution; international journal of organic evolution · 2020Article
- What's ploidy got to do with it? Understanding the evolutionary ecology of macroalgal invasions necessitates incorporating life cycle complexity.Evolutionary applications · 2020Article
- Nonclonal coloniality: Genetically chimeric colonies through fusion of sexually produced polyps in the hydrozoanEvolution letters · 2018Article
- Genetic identification of source and likely vector of a widespread marine invader.Ecology and evolution · 2017Article
- Sexual selection in hermaphrodites, sperm and broadcast spawners, plants and fungi.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016Review
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5 authors.
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Abstract
The link between life history traits and mating systems in diploid organisms has been extensively addressed in the literature, whereas the degree of selfing and/or inbreeding in natural populations of haploid-diploid organisms, in which haploid gametophytes alternate with diploid sporophytes, has been rarely measured. Dioecy has often been used as a proxy for the mating system in these organisms. Yet, dioecy does not prevent the fusion of gametes from male and female gametophytes originating from the same sporophyte. This is likely a common occurrence when spores from the same parent are dispersed in clumps and recruit together. This pattern of clumped spore dispersal has been hypothesized to explain significant heterozygote deficiency in the dioecious haploid-diploid seaweed Chondrus crispus. Fronds and cystocarps (structures in which zygotes are mitotically amplified) were sampled in two 25 m(2) plots located within a high and a low intertidal zone and genotyped at 5 polymorphic microsatellite loci in order to explore the mating system directly using paternity analyses. Multiple males sired cystocarps on each female, but only one of the 423 paternal genotypes corresponded to a field-sampled gametophyte. Nevertheless, larger kinship coefficients were detected between males siring cystocarps on the same female in comparison with males in the entire population, confirming restricted spermatial and clumped spore dispersal. Such dispersal mechanisms may be a mode of reproductive assurance due to nonmotile gametes associated with putatively reduced effects of inbreeding depression because of the free-living haploid stage in C. crispus.
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