Genetic variability predicts common frog (Rana temporaria) size at metamorphosis in the wild

Article Abstract:

The article discusses about the analysis of the two-subartic populations of the common frog, Rana temporaria in Northern Finland was conducted to determine the interactions between genetic variability and two fitness-related characteristics, size and age at the metamorphosis and the probable correlation between parental genetic variation and offspring life history characteristic variation.

Biological diversity, Biodiversity

---

Genetic and maternal effect influences on viability of common frog tadpoles under different environmental conditions

Article Abstract:

The genetic and maternal effects on the probability of survival and being deformed, body size and shape of common frog indicate that the expression of additive and nonadditive genetic variance is not pH dependent and all traits are heritable. Maternal effects are significant for all traits with viability being predominant and body size being dependent on the egg size.

Finland, Sweden, Influence, Animal development, Tadpoles, Genetic variation, Ecological stress

---

The ZZ/ZW sex-determining mechanism originated twice and independently during evolution of the frog, Rana rugosa

Article Abstract:

A study to determine the evolutionary reasons for and mechanisms of heterogametic sex change is conducted in order to understand the evolutionary mechanisms of sex determination. There are two main types of heterogamety, male heterogamety (XX/XY) and female heterogamety (ZZ/ZW).

Science & research, Research, Germ cells, Sex determination, Genetic, Sex determination (Genetics)

Similar abstracts:

• Abstracts: Genetic diversity within and among Sinai populations of three Ballota species (Lamiaceae). High genetic diversity in Sarracenia leucophylla (Sarraceniaceae), a carnivorous wetland herb
• Abstracts: Dynamics of a pig slurry microbial community during anaerobic storage and management
• Abstracts: Making ethics fit: How companies are integrating ethics into their core foundation. The future of the FDA
• Abstracts: Cardiac arterial pole alignment is sensitive to FGF8 signaling in the pharynx. Temporal and spatial action of tolloid (mini fin) and chordin to pattern tail tissues
• Abstracts: The small ubiquitin-like modifier (SUMO) is required for gonadal and uterine-vulval morphogenesis in Caenorhabditis elegans

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.