Genetic drift, not natural selection, identified as main factor driving speciation in endangered pupfish species
Scientists have identified a new member on the genetic family tree of an endangered pupfish native to south-central New Mexico.
Scientists have identified a new member on the genetic family tree of an endangered pupfish native to south-central New Mexico.
Plants & Animals
May 20, 2024
0
644
A research group led by Associate Professor Ryushiro Kasahara at Nagoya University in Japan, identified a genetic sequence in thale cress that is essential for plant reproduction. As this region is found in all plant species, ...
Plants & Animals
Jul 26, 2023
0
1
The Dentinger Lab at the Natural History Museum of Utah has published a provocative new paper in the journal New Phytologist that describes their work with the much beloved mushroom, Boletus edulis, better known by gastronomers ...
Evolution
Nov 16, 2022
0
528
Evolutionary chromosomal changes may take a million years in nature, but researchers are now reporting a novel technique enabling programmable chromosome fusion that has successfully produced mice with genetic changes that ...
Biotechnology
Aug 25, 2022
0
420
Human populations have waxed and waned over the millennia, with some cultures exploding and migrating to new areas or new continents, others dropping to such low numbers that their genetic diversity plummeted. In some small ...
Evolution
Jun 23, 2022
0
523
The National Park Service has captured its 99th mountain lion for an ongoing study of the community of big cats living in the Santa Monica Mountains.
Plants & Animals
Oct 20, 2021
0
30
The discovery was heartbreaking for biologists, who consider the mountain lions of Southern California to be among the most threatened mammals in North America: a young male with the distortions of inbreeding—a tail kinked ...
Plants & Animals
Sep 11, 2020
0
59
For three years, anthropologist Alan Rogers has attempted to solve an evolutionary puzzle. His research untangles millions of years of human evolution by analyzing DNA strands from ancient human species known as hominins. ...
Archaeology
Feb 20, 2020
6
7559
When they share habitat, orangethroat and rainbow darters tend to avoid one another, even though they are closely related and can produce "hybrid" offspring. The males compete with males of their own species and will almost ...
Evolution
Nov 25, 2019
0
239
The study of plant reproductive systems provides crucial insights into ecological interactions and the process of evolutionary change. Reproductive success is closely allied to overall fitness, and understanding the mechanisms ...
Plants & Animals
Oct 21, 2019
0
3