RAPD variation within and among geographic populations of wheat stem sawfly (Cephus cinctus Norton)

Article Abstract:

Random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was utilized to study variation in 182 individual larvae of the wheat stem sawfly Cephus cinctus Norton from 15 natural populations in Montana, North Dakota and Wyoming. Finding indicated diversity in wheat stem sawfly from the northern Great Plains. There was variation among individuals from each collection site and every individual was genetically different which is natural for an obligate outbred organism.

Sawflies

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Restricted gene flow in Calomys musculinus (Rodentia, Muridae), the natural reservoir of Junin virus

Article Abstract:

Random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) markers are used to examine the relative contribution of gene flow as a determinant of the population genetic structure of the wild rodent Calomys musculinus. The results indicate that population of C. musculinus colonized their present ranges relatively recently and differentiation by genetic drift proceeded faster than homogenization by gene flow at the macrogeographic scale analyzed.

Genetic research

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Recent range expansion and low levels of contemporary gene flow in Calomys musculinus: Its relationship with the emergence and spread of Argentine haemorrhagic fever

Article Abstract:

Two geographical scales were used to analyse the geographic distribution of haplotype diversity in the rodent Calomys musculinus, sampled from sixteen wild populations of Argentina. Twenty Four composite haplotypes were recognised in the mtDNA D-loop region.

Argentina, Haplotypes

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