ArticleEvolutionary applications2021
Evidence of unidirectional hybridization and second-generation adult hybrid between the two largest animals on Earth, the fin and blue whales.
Article in Evolutionary applications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.
- Pooled it
- Advancing Marine Mammal Conservation Through Omics Tools and Integration of Indigenous Ecological Knowledge.Molecular ecology · 2026Review
- Long-term isolation and introgression shape the genomic distinctiveness of Rice's Whale.bioRxiv : the preprint server for biology · 2026Article
- What Do We Know About Hybrid Blue (Ecology and evolution · 2026Review
- Ocean-Wide Conservation Genomics of Blue Whales Suggest New Northern Hemisphere Subspecies.Molecular ecology · 2025Article
- Towards Reliable Detection of Introgression in the Presence of Among-Species Rate Variation.Systematic biology · 2024Article
- First record of Risso's dolphinEcology and evolution · 2023Article
- Genomic Impact of Whaling in North Atlantic Fin Whales.Molecular biology and evolution · 2022Article
- Evidence of stock connectivity, hybridization, and misidentification in white anglerfish supports the need of a genetics-informed fisheries management framework.Evolutionary applications · 2021Article
- Evidence of unidirectional hybridization and second-generation adult hybrid between the two largest animals on Earth, the fin and blue whales.Evolutionary applications · 2021Article
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biodiversity in the oceans has dramatically declined since the beginning of the industrial era, with accelerated loss of marine biodiversity impairing the ocean's capacity to maintain vital ecosystem services. A few organisms epitomize the damaging and long-lasting effects of anthropogenic exploitation: Some whale species, for instance, were brought to the brink of extinction, with their population sizes reduced to such low levels that may have caused a significant disruption to their reproductive dynamics and facilitated hybridization events. The incidence of hybridization is nevertheless believed to be rare, and very little information exists on its directionality. Here, using genetic markers, we show that all but one whale hybrid sample collected in Icelandic waters originated from the successful mating of male fin whale and female blue whale, thus suggesting unidirectional hybridization. We also demonstrate for the first time the existence of a second-generation adult (male) hybrid resulting from a backcross between a female hybrid and a pure male fin whale. The incidence of hybridization events between fin and blue whales is likely underestimated and the observed unidirectional hybridization (for F1 and F2 hybrids) is likely to induce a reproductive loss in blue whale, which may represent an additional challenge to its recovery in the Atlantic Ocean compared to other rorquals.
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