The genetic basis of the kākāpō structural color polymorphism suggests balancing selection by an extinct apex predator
(2024) In PLoS Biology 22(9 September).- Abstract
- AU The:information Pleaseconfirmthatallheadinglevelsarerepresentedcorrectly contained in population genomic data can tell : us much about the past ecology and evolution of species. We leveraged detailed phenotypic and genomic data of nearly all living kākāpō to understand the evolution of its feather color polymorphism. The kākāpō is an endangered and culturally significant parrot endemic to Aotearoa New Zealand, and the green and olive feather colorations are present at similar frequencies in the population. The presence of such a neatly balanced color polymorphism is remarkable because the entire population currently numbers less than 250 birds, which means it has been exposed to severe genetic drift. We dissected the color phenotype,... (More)
- AU The:information Pleaseconfirmthatallheadinglevelsarerepresentedcorrectly contained in population genomic data can tell : us much about the past ecology and evolution of species. We leveraged detailed phenotypic and genomic data of nearly all living kākāpō to understand the evolution of its feather color polymorphism. The kākāpō is an endangered and culturally significant parrot endemic to Aotearoa New Zealand, and the green and olive feather colorations are present at similar frequencies in the population. The presence of such a neatly balanced color polymorphism is remarkable because the entire population currently numbers less than 250 birds, which means it has been exposed to severe genetic drift. We dissected the color phenotype, demonstrating that the two colors differ in their light reflectance patterns due to differential feather structure. We used quantitative genomics methods to identify two genetic variants whose epistatic interaction can fully explain the species’ color phenotype. Our genomic forward simulations show that balancing selection might have been pivotal to establish the polymorphism in the ancestrally large population, and to maintain it during population declines that involved a severe bottleneck. We hypothesize that an extinct apex predator was the likely agent of balancing selection, making the color polymorphism in the kākāpō a “ghost of selection past.” © 2024 Urban et al. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/ace9a2c2-6c21-4381-83e8-a708f1fe0b22
- author
- Urban, Lara and Morales, H.E. LU
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Animals, Color, Feathers, New Zealand, Parrots, Phenotype, Pigmentation, Polymorphism, Genetic, Predatory Behavior, Selection, Genetic, article, balancing selection, bird, color, etiology, feather, genetic drift, genetic variability, olive, parrot, phenotype, predator, simulation, animal, genetic polymorphism, genetic selection, genetics, pigmentation, predation
- in
- PLoS Biology
- volume
- 22
- issue
- 9 September
- article number
- e3002755
- publisher
- Public Library of Science (PLoS)
- external identifiers
-
- scopus:85203850310
- pmid:39255270
- ISSN
- 1544-9173
- DOI
- 10.1371/journal.pbio.3002755
- language
- English
- LU publication?
- yes
- id
- ace9a2c2-6c21-4381-83e8-a708f1fe0b22
- date added to LUP
- 2024-12-18 09:09:26
- date last changed
- 2025-04-04 15:09:35
@article{ace9a2c2-6c21-4381-83e8-a708f1fe0b22,
abstract = {{AU The:information Pleaseconfirmthatallheadinglevelsarerepresentedcorrectly contained in population genomic data can tell : us much about the past ecology and evolution of species. We leveraged detailed phenotypic and genomic data of nearly all living kākāpō to understand the evolution of its feather color polymorphism. The kākāpō is an endangered and culturally significant parrot endemic to Aotearoa New Zealand, and the green and olive feather colorations are present at similar frequencies in the population. The presence of such a neatly balanced color polymorphism is remarkable because the entire population currently numbers less than 250 birds, which means it has been exposed to severe genetic drift. We dissected the color phenotype, demonstrating that the two colors differ in their light reflectance patterns due to differential feather structure. We used quantitative genomics methods to identify two genetic variants whose epistatic interaction can fully explain the species’ color phenotype. Our genomic forward simulations show that balancing selection might have been pivotal to establish the polymorphism in the ancestrally large population, and to maintain it during population declines that involved a severe bottleneck. We hypothesize that an extinct apex predator was the likely agent of balancing selection, making the color polymorphism in the kākāpō a “ghost of selection past.” © 2024 Urban et al.}},
author = {{Urban, Lara and Morales, H.E.}},
issn = {{1544-9173}},
keywords = {{Animals; Color; Feathers; New Zealand; Parrots; Phenotype; Pigmentation; Polymorphism, Genetic; Predatory Behavior; Selection, Genetic; article; balancing selection; bird; color; etiology; feather; genetic drift; genetic variability; olive; parrot; phenotype; predator; simulation; animal; genetic polymorphism; genetic selection; genetics; pigmentation; predation}},
language = {{eng}},
number = {{9 September}},
publisher = {{Public Library of Science (PLoS)}},
series = {{PLoS Biology}},
title = {{The genetic basis of the kākāpō structural color polymorphism suggests balancing selection by an extinct apex predator}},
url = {{http://dx.doi.org/10.1371/journal.pbio.3002755}},
doi = {{10.1371/journal.pbio.3002755}},
volume = {{22}},
year = {{2024}},
}