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Temporal dynamics of color polymorphism and hybridization in Colias butterflies.

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Title: Temporal dynamics of color polymorphism and hybridization in Colias butterflies.
Authors: Jahner, Joshua P1 (AUTHOR), Forister, Matthew L2 (AUTHOR), Parchman, Thomas L2 (AUTHOR), Burdo, Shelby M2 (AUTHOR), McFarlane, S Eryn3 (AUTHOR), Buerkle, C Alex4 (AUTHOR), Nice, Chris C5 (AUTHOR), Fordyce, James A6 (AUTHOR), Shapiro, Arthur M7 (AUTHOR)
Source: Evolution. Jun2026, Vol. 80 Issue 6, p1374-1382. 9p.
Subjects: Species hybridization, Polymorphism (Zoology), Assortative mating, Climate change, Sex chromosomes, Genetic variation, Hybrid zones, Butterflies
Abstract: Investigations into the genetic basis of color polymorphism have played a key role in our understanding of genetic architecture and the evolution of mating systems. Sulfur butterflies (Colias) have been models in this field, but also contain unsolved puzzles with respect to species boundaries and hybridization. We surveyed genomic variation across 5 years in a location where phenotypic intermediates between Colias eurytheme and C. eriphyle are observed, but ancestry variation of potential hybrids has not been quantified. Our results reveal individuals with hybrid ancestry roughly in proportion to the frequency of individuals of intermediate phenotype recorded in the wild. Individuals with hybrid ancestry were predominantly those with intermediate morphologies, but morphologically intermediate individuals were not always of hybrid origin, which raises alternative possibilities for the origin and maintenance of color variation in the system. Genomic regions differentiated between species are largely located on the Z chromosome, and we find more candidates on autosomes than in another Colias contact zone. The dynamics of hybridization in this system are highly variable through time, suggesting fertile avenues for future study into the maintenance of species boundaries in the face of temporally variable, climatically influenced, and pervasive hybridization. [ABSTRACT FROM AUTHOR]
Copyright of Evolution is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Temporal dynamics of color polymorphism and hybridization in Colias butterflies.
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  Data: <searchLink fieldCode="AR" term="%22Jahner%2C+Joshua+P%22">Jahner, Joshua P</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Forister%2C+Matthew+L%22">Forister, Matthew L</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Parchman%2C+Thomas+L%22">Parchman, Thomas L</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burdo%2C+Shelby+M%22">Burdo, Shelby M</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22McFarlane%2C+S+Eryn%22">McFarlane, S Eryn</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Buerkle%2C+C+Alex%22">Buerkle, C Alex</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nice%2C+Chris+C%22">Nice, Chris C</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fordyce%2C+James+A%22">Fordyce, James A</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shapiro%2C+Arthur+M%22">Shapiro, Arthur M</searchLink><relatesTo>7</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Evolution%22">Evolution</searchLink>. Jun2026, Vol. 80 Issue 6, p1374-1382. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Species+hybridization%22">Species hybridization</searchLink><br /><searchLink fieldCode="DE" term="%22Polymorphism+%28Zoology%29%22">Polymorphism (Zoology)</searchLink><br /><searchLink fieldCode="DE" term="%22Assortative+mating%22">Assortative mating</searchLink><br /><searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br /><searchLink fieldCode="DE" term="%22Sex+chromosomes%22">Sex chromosomes</searchLink><br /><searchLink fieldCode="DE" term="%22Genetic+variation%22">Genetic variation</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+zones%22">Hybrid zones</searchLink><br /><searchLink fieldCode="DE" term="%22Butterflies%22">Butterflies</searchLink>
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  Data: Investigations into the genetic basis of color polymorphism have played a key role in our understanding of genetic architecture and the evolution of mating systems. Sulfur butterflies (Colias) have been models in this field, but also contain unsolved puzzles with respect to species boundaries and hybridization. We surveyed genomic variation across 5 years in a location where phenotypic intermediates between Colias eurytheme and C. eriphyle are observed, but ancestry variation of potential hybrids has not been quantified. Our results reveal individuals with hybrid ancestry roughly in proportion to the frequency of individuals of intermediate phenotype recorded in the wild. Individuals with hybrid ancestry were predominantly those with intermediate morphologies, but morphologically intermediate individuals were not always of hybrid origin, which raises alternative possibilities for the origin and maintenance of color variation in the system. Genomic regions differentiated between species are largely located on the Z chromosome, and we find more candidates on autosomes than in another Colias contact zone. The dynamics of hybridization in this system are highly variable through time, suggesting fertile avenues for future study into the maintenance of species boundaries in the face of temporally variable, climatically influenced, and pervasive hybridization. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Evolution is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1093/evolut/qpag064
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 1374
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      – SubjectFull: Species hybridization
        Type: general
      – SubjectFull: Polymorphism (Zoology)
        Type: general
      – SubjectFull: Assortative mating
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      – SubjectFull: Climate change
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      – SubjectFull: Sex chromosomes
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      – SubjectFull: Genetic variation
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      – SubjectFull: Hybrid zones
        Type: general
      – SubjectFull: Butterflies
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      – TitleFull: Temporal dynamics of color polymorphism and hybridization in Colias butterflies.
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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