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Atlas Blue Butterfly's Unique Genome Sparks Adaptation Concerns

9/28/2025

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Summary

Story summary

The Atlas blue butterfly has 229 chromosome pairs—the highest among multicellular animals—based on genome sequencing by the Wellcome Sanger Institute (WSI).
The genome shows chromosomes split into smaller segments over about 3 million years, reflecting chromosomal rearrangements.
These changes may boost genetic diversity and adaptation but could raise extinction risk; climate change and habitat destruction threaten populations.

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Story summary

The Atlas blue butterfly has 229 chromosome pairs—the highest among multicellular animals—based on genome sequencing by the Wellcome Sanger Institute (WSI).
The genome shows chromosomes split into smaller segments over about 3 million years, reflecting chromosomal rearrangements.
These changes may boost genetic diversity and adaptation but could raise extinction risk; climate change and habitat destruction threaten populations.