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Apr. 15, 2021 Bearded dragon embryos can use two different sets of genes to become a female lizard -- one activated by the sex chromosomes and the other activated by high temperatures during development, ...
Sep. 2, 2021 The cichlids of Lake Tanganyika in Africa are highly diverse -- including with regard to sex chromosomes. These have changed extremely frequently in the course of the evolution of these fish and, ...
Sep. 9, 2022 Scientists have known that sex-determination in vertebrates happens in the germ cells, a body's reproductive cells, and the somatic cells, the cells that are not reproductive cells. Yet they ...
Nov. 2, 2023 Researchers have shown that sex differences in animals vary dramatically across species, organs and developmental stages, and evolve quickly at the gene level but slowly at the cell type ...
Apr. 13, 2021 The O. swinhoana frog species is the first vertebrate known to retain descendant genes that now determine sex in mammals, birds, and fishes inherited from a common ...
July 14, 2021 For 30 years, University of Tokyo Associate Professor Hisayoshi Nozaki has visited the Sagami River to collect algal samples to understand how living things evolved different sexes. The threes sexes ...
Nov. 28, 2022 The Sox9 gene is upregulated in the absence of sex-determining Y chromosome and Sry gene in Amami spiny ...
July 26, 2021 A new study sheds light on how organisms have evolved to address imbalances in sex chromosomes. The study looks at a species of softshell turtle, but the results could help to illuminate an important ...
Jan. 12, 2023 More than 2,500 genes exhibit significant sex differences in expression in mouse alveolar type II cells (AT2s), important for keeping the lungs functioning, potentially explaining sex biases in the ...
Oct. 4, 2023 To date it has been unclear exactly how the sex of a bee is determined. A research team comprising biologists and chemists has now identified a key gene and the molecular mechanism linked with it. ...