Genetic Correlations, Tradeoffs and Environmental Variation

Article Abstract:

The evidence for the shifts by focusing on experiments that have examined genetic correlations in more than one environment is reviewed. Queries are raised about the validity of deducing genetic constraints from studies in one environment and suggest that the interaction between environment conditions and the expression of genetic covariation is an important avenue for future work.

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Low Y chromosome variation in Saudi-Arabian hamadryas (Papio hamadryas hamadryas)

Article Abstract:

Low levels of polymorphism on the Y chromosome of Saudi-Arabian hamadryas baboons, Papio hamadryas hamadryas are reported. Low effect population size of paternal genes due to polygyny and female-biased adult sex ration is a potential reason for low Y chromosome variation in Arabian hamadryas.

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Neutral versus adaptive genetic variation in parasite resistance: importance of major histocompatibility complex supertypes in a free-ranging primate

Article Abstract:

An investigation on the effects of neutral versus adaptive genetic variation in parasite resistance in fat-tailed dwarf lemurs (Cheirogaleus medius) was conducted. Result shows no association between neutral overall individual genetic diversity and parasite load.

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