ArticleScience advances2023
Repeated independent origins of the placenta reveal convergent and divergent organ evolution within a single fish family (Poeciliidae).
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Comparative single-cell analysis of black rockfish (Sebastes schlegelii) ovarian stroma reveals placenta-like adaptations toward viviparity.Communications biology · 2026Article
- Cellular and molecular mechanisms of seahorse male pregnancy.Nature ecology & evolution · 2025Article
- Heterochronic changes in gene expression underlie placental evolution in the fish family Poeciliidae.Proceedings. Biological sciences · 2025Article
- Understanding, predicting, and treating depression in pregnancy to improve mothers' and offspring's mental health outcomes: The HappyMums study.Brain, behavior, & immunity - health · 2025Article
- Understanding vertebrate immunity through comparative immunology.Nature reviews. Immunology · 2025Review
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7 authors.
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Abstract
An outstanding question in biology is to what extent convergent evolution produces similar, but not necessarily identical, complex phenotypic solutions. The placenta is a complex organ that repeatedly evolved in the livebearing fish family Poeciliidae. Here, we apply comparative approaches to test whether evolution has produced similar or different placental phenotypes in the Poeciliidae and to what extent these phenotypes correlate with convergence at the molecular level. We show the existence of two placental phenotypes characterized by distinctly different anatomical adaptations (divergent evolution). Furthermore, each placental phenotype independently evolved multiple times across the family, providing evidence for repeated convergence. Moreover, our comparative genomic analysis revealed that the genomes of species with different placentas are evolving at a different pace. Last, we show that the two placental phenotypes correlate with two previously described contrasting life-history optima. Our results argue for high evolvability (both divergent and convergent) of the placenta within a group of closely related species in a single family.
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