Search results for phylogenetic data

Evolution Jun 9, 2022

Chromatin found to have originated in ancient microbes one to two billion years ago

In almost every human cell, 2 meters of DNA has to fit within a nucleus that is just 8 millionths of a meter wide. Like wool around a spool, the extreme space challenge requires DNA to wrap around structural proteins called ...

Plants & Animals Jun 7, 2022

Two new polyalthiopsis species reported from China

Researchers from the Xishuangbanna Tropical Botanical Garden (XTBG) of the Chinese Academy of Sciences have collected and maintained a collection of about 100 plants of Annonaceae, a large pantropical flowering plant family. ...

Evolution Jun 6, 2022

Analysis of huntsman spiders reveals patterns of social behavior

A new study of huntsman spiders links evolutionary lineages with life history traits, providing patterns for predicting social behaviors in other less-studied species. Sociality is very rare in spiders—only five out of ...

Plants & Animals Jun 6, 2022

New study deepens understanding of how animals see, and what colors

Gathering vision data for hundreds of vertebrates and invertebrates, U of A biologists have deepened scientists' understanding of animal vision, including the colors they see.

Evolution Jun 1, 2022

India's relic forests reveal a new species of leopard gecko

Deep in the forests of Odisha and Andhra Pradesh in India lives a colorful gecko species that only now revealed its true identity. Meet Eublepharis pictus, also known as the Painted Leopard Gecko.

Plants & Animals May 30, 2022

Global biogeographical patterns and correlates of floral longevity

The length of time a flower remains open (i.e., from anthesis to flower senescence) is called floral longevity. Floral longevity is one of the most important reproductive traits, as it determines opportunities for pollen ...

Cell & Microbiology May 25, 2022

Secrets of thymus formation revealed

The thymus is a crucial organ of the immune system. In the thymus, the well-known T cells mature: As killer cells, they recognize and destroy virus-infected or malignant cells, and as so-called helper T cells they assist ...

Paleontology & Fossils May 19, 2022

Previously unknown crocodile species lived in Asia 39 million years ago

Researchers from the Senckenberg Center for Human Evolution and Paleoenvironment at the University of Tübingen have identified fossils of a previously unknown crocodile species in Vietnam. The nearly four-meter-long, almost ...

Plants & Animals May 17, 2022

Complete chloroplast genome of Coleanthus subtilis, a protected rare species

Coleanthus subtilis (Tratt.) Seidel (Poaceae) is a rare grass in the monotypic genus Coleanthus Seidl. It has been protected in many countries, such as the Czech Republic, North America and China, because of the extremely ...

Environment May 13, 2022

Seasonal variations of methane consuming and methane producing microbial communities contribute to emissions

Wetland ecosystems are the most important and prolific natural methane (CH4) sources. CH4 is constantly flowing in and out of these regions (flux), and that flow periodically fluctuates. Methanogens (methane producers) and ...

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