ISSN:
1573-4927
Keywords:
population structure
;
butterfly
;
enzyme polymorphism
;
mitochondrial DNA (mtDNA)
;
restriction fragment length polymorphism (RFLP)
;
dispersal
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Dryas iulia appears to have undergone a mode of evolution different from that of other members of its subfamily (Heliconiinae). While other species constitute highly subdivided and inbred populations, those ofD. iulia are thought to be large and uniform. Analyzing six samples from Southern Brazil (state of Rio Grande do Sul) in relation to three enzyme systems (EST, LAP, and PGM) and their mtDNA RFLP patterns, we found that they are very similar at the molecular level. TheF statistics for enzyme polymorphism data revealed that inbreeding makes a great contribution to the population homozygosity, sinceF IS equals 0.1322 andF ST equals 0.0023. Since the chi-square test showed thatF ST is not significant, we conclude that all localities belong to the same population. The mtDNA differentiation was about 12 times greater than for nuclear genes;F ST was equivalent to 0.0265. We suggest that this difference is due to a higher dispersal of males, in relation to females.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00553461
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