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 ...

Scientists are making use of Xenopus tadpoles to study autism risk genes. Scientists have discovered that a lack of iron in pregnant mice can alter the sex development of embryos, challenging ...

编辑推荐： 本文研究发现非洲爪蟾（Xenopus laevis）对人类致病菌敏感，腹腔注射会致死。它可用于评估抗菌药物疗效和鉴定毒力基因，能模拟哺乳动物败血症，为研究细菌感染机制及治疗策略提供了新的动物模型，助力传染病研究。

细胞胞质分裂（Cytokinesis）会产生作用于相邻细胞的力，这对上皮组织稳态构成挑战。非洲爪蟾（Xenopus）上皮中，胞质分裂沟处的连接增强可调节缢缩速度，这表明胞质分裂会受到来自上皮邻居的阻力。研究显示，收缩性因子在相邻细胞的分裂沟附近积累，增加邻居细胞的硬度会减缓缢缩。通过光 ...

muffet Pregnancy tests did not always come in an easy-to-use, sterile kit that provided almost immediate results. Less than a century ago, women had to rely upon frogs instead. In 1938, Dr. Edward ...

1. Many organisms are able to vary the duration of life-history stages in response to environmental conditions such as predation risk. However, in those undergoing a metamorphosis, it is not known ...

Moreover, Xenopus oocytes have been used to good effect in screening small pool cDNA libraries for novel cell cycle regulators. 39 A similar approach, using the NIR dye as an apoptotic indicator ...

Xenopus frogs were also less expensive to raise and easier to maintain than rodents, and the test seemed to be nearly 100% accurate.

They are named for the African clawed frog Xenopus laevis, which supplies all their cells, and the suggestion, encapsulated in the prefix, that something strange, alien, is at work.

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 ...