Researchers at the IPK Leibniz Institute have discovered a previously unknown protein that is central to plant reproduction. The protein SCEP3 enables plants to mix and precisely distribute their chromosomes—carriers of ...
Plants & Animals
11 hours ago
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35
A new study published in the Proceedings of the National Academy of Sciences reveals that smaller islands within the Wallacea biodiversity hotspot are crucial refuges for endangered vertebrates, providing higher-quality habitats ...
Evolution
Jun 25, 2025
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83
Scientists have shed new light on the evolution of an important species of wasp—and believe that the findings could help improve the effectiveness of natural pest control.
Ecology
Jun 9, 2025
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1
A research team led by Prof. Pang Shaojun from the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS), along with collaborators, has reported on the challenges of genetic homogeneity in aquaculture of the ...
Plants & Animals
Jun 6, 2025
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0
New Zealand research published in Science explores the impact of disruptions to the Earth's seasons caused by climate change.
Evolution
May 30, 2025
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7
Newly sequenced ancient genomes from Yunnan, China, have shed new light on human prehistory in East Asia. In a study published in Science, a research team led by Prof. Fu Qiaomei at the Institute of Vertebrate Paleontology ...
Archaeology
May 29, 2025
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34
Ever since a few enterprising bed bugs hopped off a bat and attached themselves to a Neanderthal walking out of a cave 60,000 years ago, bed bugs have enjoyed a thriving relationship with their human hosts.
Evolution
May 28, 2025
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72
Alicella gigantea, a rarely sighted giant crustacean that inhabits the depths of the ocean and can reach up to 34 cm in length, is not rare after all. This species, though elusive, is one of the most widely distributed species ...
How do organisms adapt to climate change? A new study reveals the complex interplay between genetic diversity and temperature tolerance evolution.
Evolution
May 21, 2025
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0
Songbirds who make the arduous flight from their nesting sites in northern boreal forests to warm, southern climates in the winter may be rewarded for their journey with greater genetic diversity, according to a University ...
Evolution
May 21, 2025
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Genetic diversity is a level of biodiversity that refers to the total number of genetic characteristics in the genetic makeup of a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary.
The academic field of population genetics includes several hypotheses and theories regarding genetic diversity. The neutral theory of evolution proposes that diversity is the result of the accumulation of neutral substitutions. Diversifying selection is the hypothesis that two subpopulations of a species live in different environments that select for different alleles at a particular locus. This may occur, for instance, if a species has a large range relative to the mobility of individuals within it. Frequency-dependent selection is the hypothesis that as alleles become more common, they become less fit. This is often invoked in host-pathogen interactions, where a high frequency of a defensive allele among the host means that it is more likely that a pathogen will spread if it is able to overcome that allele.
This text uses material from Wikipedia, licensed under CC BY-SA
