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tag sexual reproduction evolution genetics genomics

Yeast Made to Harvest Light Hint at Evolution’s Past
Kamal Nahas, PhD | Feb 21, 2024 | 6 min read
Scientists transferred light-harvesting proteins into yeast for the first time, shining a light on the past lives of eukaryotic cells.
front view of a green grasshopper with a white and orange face.
Why Do Male Organisms Exist?
Hannah Thomasy, PhD | Mar 1, 2024 | 2 min read
Some species of lizards, grasshoppers, and crustaceans have adopted a ladies-only lifestyle.
Cellular DNA and epigenetics
Do Epigenetic Changes Influence Evolution?
Katarina Zimmer | Nov 1, 2022 | 10+ min read
Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Jim Daley | Feb 14, 2018 | 2 min read
Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 
Brown coral in shallow water branching upward with blue fish in front. 
Corals Upend Longstanding Idea About Genetic Inheritance
Natalia Mesa, PhD | Sep 1, 2022 | 4 min read
Most animals can’t pass on mutations that arise spontaneously throughout their lives—but Elkhorn corals can.
illustration of a mitochondrian inside a cell
Could Dad’s Mitochondrial DNA Benefit Hybrids?
Alejandra Manjarrez, PhD | Jan 20, 2022 | 7 min read
Studies have found that organisms can inherit mitochondria from male parents in rare instances, and both theoretical and experimental work hint that this biparental inheritance is more than just a fluke.
a trio of infant mice, two brown mice on the ends and one white mouse in the middle
Mice Pass Epigenetic Tweaks to Pups
Katherine Irving | Feb 17, 2023 | 5 min read
An engineered methylation pattern persisted for four generations of mice, demonstrating transgenerational epigenetic inheritance can occur in mammals.
A C-fern (Ceratopteris richardii) growing in a pot
Genome Spotlight: C-fern (Ceratopteris richardii)
Christie Wilcox, PhD | Sep 22, 2022 | 5 min read
Sequences for the model organism and two of its kin reveal how these plants got their oversized genomes.
group of paleolithic people around a campfire
Gene Variant Points to Starvation’s Evolutionary Legacy
Sophie Fessl, PhD | Sep 28, 2021 | 4 min read
Ancient and modern genomes reveal that a variant of the human growth hormone receptor likely helped our ancestors survive when food was scarce.
Genetics Models Move Beyond Drosophila and the Humble Lab Mouse
Amber Dance | Sep 1, 2019 | 8 min read
Organisms with unusual genomes are helping scientists investigate gene regulation, evolution, and development.

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