Complex factors shape phenotypic variation in deep-sea limpets

Genome size variation in deep-sea amphipods

Genome size varies considerably across taxa, and extensive research effort has gone into understanding whether variation can be explained by differences in key ecological and life-history traits among species. The extreme environmental conditions that characterize the deep sea have been hypothesized to promote large genome sizes in eukaryotes. Here we test this supposition by examining genome s...

Local and regional variation in deep - sea polychaete diversity

Phenotypic Variation of Indigenous Sesame landraces in Urmia Climate

    Sesame is one of the oldest and most important oilseeds in Iran and the world due to its nutritional value. In the present study, 25 sesame landraces collected from different regions of the country were evaluated in terms of phenological, morphological and physiological traits in Urmia climate. The ANOVA results showed that there was a statistically significant difference between the landra...

Deep sea in deep trouble?

Ahead of the imminent start of the industrial exploitation of deep sea resources, an EU report finds that scientific knowledge and understanding of this environment and its ecosystems still fall short of what would be needed for a sustainable use.

Complex Variation in the Brain Arteries in Tehran

Variations in the cerebral arterial circle (CAC) correlate with incidence of some cerebrovascular diseases and must be considered during surgical operations (1, 2). It also seems that different distribution of variations of the CAC is related to the race. This issue may partially explain the different incidences of some of the cerebrovascular diseases in different ethnic or racial groups (3-5)....