TY - JOUR
T1 - Population structure of Rhagoletis pomonella, the apple maggot fly
AU - Berlocher, Stewart H.
AU - McPheron, Bruce A.
N1 - Funding Information:
This project would never have been possible without the assistance of S. Lyons, J. A. Payne, R. Payne, A. Amis, W. S. Sheppard, C. Anelli, Th. Anderson, M. G. Anderson, S. H. Berlocher, N. N. Berlocher, G. P. Berlocher and G. L. Bush (Cmdr, Ret.), and in particular J. L. Feder for the use of unpublished data. NSF grant 89—06217 provided funding.
PY - 1996/7
Y1 - 1996/7
N2 - Rhagoletis pomonella, the apple maggot fly, is the best-known member of the R. pomonella species complex. Rhagoletis pomonella has attracted interest because of its economic importance and because it has been a central focus of debate over sympatric speciation via host race formation. Based on electrophoretic data for 17 allozyme loci, the population structure of the ancestral hawthorn race of R. pomonella is characterized by: (i) strong geographical differentiation across eastern North America (FST = 0.148), (ii) pronounced latitudinal clines in allele frequencies at three loci, Aat-2, Dia-2 and Had, and (iii) very strong linkage disequilibrium involving two of these loci, Dia-2 and Aat-2, which are closely linked. The 10-fold greater level of population differentiation in R. pomonella compared with its close relative R. mendax may be related to its greater flexibility in life history timing.
AB - Rhagoletis pomonella, the apple maggot fly, is the best-known member of the R. pomonella species complex. Rhagoletis pomonella has attracted interest because of its economic importance and because it has been a central focus of debate over sympatric speciation via host race formation. Based on electrophoretic data for 17 allozyme loci, the population structure of the ancestral hawthorn race of R. pomonella is characterized by: (i) strong geographical differentiation across eastern North America (FST = 0.148), (ii) pronounced latitudinal clines in allele frequencies at three loci, Aat-2, Dia-2 and Had, and (iii) very strong linkage disequilibrium involving two of these loci, Dia-2 and Aat-2, which are closely linked. The 10-fold greater level of population differentiation in R. pomonella compared with its close relative R. mendax may be related to its greater flexibility in life history timing.
KW - Allozymes
KW - Population genetics
KW - Population structure
KW - Rhagoletis
KW - Sympatric speciation
KW - Tephritidae
UR - http://www.scopus.com/inward/record.url?scp=0002175973&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0002175973&partnerID=8YFLogxK
U2 - 10.1038/hdy.1996.111
DO - 10.1038/hdy.1996.111
M3 - Article
AN - SCOPUS:0002175973
SN - 0018-067X
VL - 77
SP - 83
EP - 99
JO - Heredity
JF - Heredity
IS - 1
ER -