推荐 为解决两栖动物表观遗传衰老研究工具匮乏问题，研究人员构建非洲爪蟾（Xenopus tropicalis）DNA 甲基化时钟。基于 192 只爪蟾皮肤样本的靶向亚硫酸氢盐测序，发现衰老相关 CpG 位点富集于异染色质等区域，且机制与哺乳动物保守。该工具为衰老生物学及跨物种研究提供新范式。

To explore the origins and consequences of tetraploidy in the African clawed frog, we sequenced the Xenopus laevis genome and compared it to the related diploid X. tropicalis genome. We ...

The common laboratory frog Xenopus laevis has puzzled researchers because it has twice the normal number of genes. A newly published genome sequence shows why: between 15 and 20 million years ago ...

Though the African clawed frog (Xenopus laevis) is the most commonly used amphibian in biological research, there are no standard protocols for the husbandry of this species. With the goal of ...

After being scrambled, the cytoplasm of Xenopus frog eggs spontaneously reorganizes into cell-like compartments. Nuclei are blue; microtubules are green; the endoplasmic reticulum is red.

Xenopus, meaning "strange foot," is a genus of more than 20 frog species native to sub-Saharan Africa. When biologists discovered in the early 20th century that these frogs were unusually ...

African clawed frogs used to be the best human pregnancy tests in the world. Doctors would inject a woman's urine into the back of a female frog; if positive, the frog would lay eggs. Frog or ...

The African clawed frog, Xenopus laevis, is a palm-sized, greenish-gray animal that hails from the ponds and rivers of sub-Saharan Africa, where it lived for millions of years without anyone ...

Can scrambled eggs unscramble themselves? Well, sort of. The cytoplasm of ruptured Xenopus frog eggs spontaneously reorganizes into cell-like compartments, according to a study by researchers at ...

Strictly speaking, these life-forms do not have sex organs — or stomachs, brains or nervous systems. The one under the microscope consisted of about 2,000 living skin cells taken from a frog embryo.

When a Xenopus frog is deeply wounded, its skin can regenerate without scarring. Researchers have found that cells under the skin contribute to this regeneration after an excision injury.