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The effects on genetic variability following a recent colonization event: the Australian sheep blowfly, Lucilia cuprina arrives in New Zealand
Author(s) -
GLEESON D. M.
Publication year - 1995
Publication title -
molecular ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.619
H-Index - 225
eISSN - 1365-294X
pISSN - 0962-1083
DOI - 10.1111/j.1365-294x.1995.tb00270.x
Subject(s) - lucilia cuprina , biology , colonization , population genetics , population , genetic variability , ecology , range (aeronautics) , genetic variation , zoology , calliphoridae , larva , genotype , demography , genetics , gene , sociology , materials science , composite material
The Australian sheep blowfly, Lucilia cuprina , was first identified in New Zealand in 1988 and is now found to have spread throughout many sheep‐farming regions. L. cuprina is estimated to have been present in New Zealand < 20 years, while in Australia L. cuprina has been estimated present > 100 years. The aim of this study was to determine the genetic effects of colonization of L. cuprina and to compare populations of L. cuprina from these two countries in terms of genetic variability and differentiation. Allozyme electrophoresis was used which revealed variability at six loci. 1680 blowflies were examined from 56 sites throughout L. cuprina's range in both countries. Genetic variability at each locus in terms of allele composition was found to be high and genetic differentiation varied considerably in New Zealand in comparison to Australia. Temporal sampling in New Zealand suggests seasonal fluctuations of population size in the recently colonized region of the South Island.