The evolution of gestation length in eutherian mammals.

Eutherian mammals exhibit considerable variation in their gestation lengths, which has traditionally been linked to variation in other traits, including body mass and lifespan. To understand how gestation length variation, including its association with body mass and lifespan variation, changed over mammalian evolution, we conducted phylogeny-informed analyses of 845 representative extant species. We found that gestation length substantially differed in both whether and how strongly it was associated with body mass and lifespan across mammals.

The evolution of gestation length in eutherian mammals.

Gestation length, or the duration of pregnancy, is a critical component of mammalian reproductive biology. Eutherian mammals exhibit striking variation in their gestation lengths, which has traditionally been linked to and allometrically scales with variation in other life history traits, including body mass and lifespan. How the phenotypic landscape of gestation length variation, including its associations with body mass and lifespan variation, changed over mammalian evolution remains unknown.

Transcriptome analysis of flathead grey mullet () ovarian development induced by recombinant gonadotropin hormones.

Treatment with recombinant gonadotropin hormones (rGths), follicle-stimulating hormone (rFsh) and luteinizing hormone (rLh), was shown to induce and complete vitellogenesis to finally obtain viable eggs and larvae in the flathead grey mullet (), a teleost arrested at early stages of gametogenesis in intensive captivity conditions. This study aimed to investigate the transcriptomic changes that occur in the ovary of females during the rGths-induced vitellogenesis. Ovarian samples were collected through biopsies from the same five females at four stages of ovarian development.

Genome Analysis of : Unraveling the Genomic Landscape of a Successful Invader.

The Tetraodontidae family encompasses several species which attract scientific interest in terms of their ecology and evolution. The silver-cheeked toadfish () is a well-known "invasive sprinter" that has invaded and spread, in less than a decade, throughout the Eastern and part of the Western Mediterranean Sea from the Red Sea through the Suez Canal. In this study, we built and analysed the first near-chromosome level genome assembly of and explored its evolutionary landscape.