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LARVAL COLORATION OF HYBRIDS BETWEEN CHORISTONEURA OCCIDENTALIS AND C. RETINIANA (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

Andrew M. Liebhold
Andrew M. Liebhold
Affiliation:
Department of Entomology, University of Massachusetts, Amherst, Massachusetts, USA 01003
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Abstract

Larval color morph frequencies were observed in the offspring of hybrid and backcross matings between pure Choristoneura occidentalis Freeman and C. retiniana (Walsingham) laboratory lines. Offspring of hybrid matings were mostly brown larval forms but intermediate and green larvae also occurred. Progeny of backcrosses to C. occidentalis were almost entirely brown larvae. Backcrosses to C. retiniana yielded mostly green larvae but a substantial number of intermediate and brown larvae also were in the progeny. There was no evidence that larval color is sex-linked or sex-limited.

Résumé

On a observé la fréquence des colorimorphes larvaires dans la progéniture résultant du croisement et du rétrocroisement de lignées de laboratoires pures de Choristoneura occidentalis Freeman et C. retiniana (Walsingham). La progéniture hybride était surtout constitutée de larves brunes mais des larves vertes et de couleur intermédiaire ont aussi été observées. Les larves issues des rétrocroisements avec C. occidentalis étaient presqu’entièrement de la forme brune. Les rétrocroisements avec C. retiniana ont surtout produit des larves vertes mais un bon nombre de larves brunes et intermédiaires ont aussi été obtenues. Il n’y avait aucune indication que la couleur larvaire est liée au sexe ou limitée par le sexe.

Type
Articles
Information
The Canadian Entomologist , Volume 118 , Issue 9 , September 1986 , pp. 857 - 860
Copyright
Copyright © Entomological Society of Canada 1986

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References

Grizzle, J.E., Starmer, C.F., and Koch, G.G.. 1969. Analysis of categorical data by linear models. Biometrics 25: 489–504.CrossRefGoogle ScholarPubMed
Harvey, G.T., and Roden, P.M.. 1979. Special collection of coniferophagous Choristoneura species and hybrids at the Great Lakes Forest Research Centre, Sault Ste. Marie, Canada. Environment Canada, Forestry Service Great Lakes Forest Research Centre Info. Rep. O-X-293. 27 pp. Appendix.Google Scholar
Liebhold, A.M., and Volney, W.J.A.. 1985. Effects of attractant composition and release rate on attraction of male Choristoneura retiniana, C. occidentalis, and C. carnana (Lepidoptera: Tortricidae). Can. Ent. 117: 447–457.CrossRefGoogle Scholar
Liebhold, A.M., Volney, W.J.A., and Waters, W.E.. 1984. Evaluation of cross-attraction between sympatric Choristoneura occidentalis and C. retiniana (Lepidoptera: Tortricidae) populations in south-central Oregon. Can. Ent. 116: 827–840.CrossRefGoogle Scholar
Powell, J.A. 1980. Nomenclature of Nearctic conifer-feeding Choristoneura (Lepidoptera: Tortricidae): historical review and present status. U.S.D.A. For. Serv. PNW For. & Range Exp. Stn. Gen. Tech. Rep. PNW-100. 18 pp.Google Scholar
Robertson, J.L. 1979. Rearing the western spruce budworm. U.S. Dep. Agric. Misc. Publ. Canada/United States Spruce Budworm Program. 18 pp.Google Scholar
Smith, S.G. 1953 Reproductive isolation and the integrity of two sympatric species of Choristoneura (Lepidoptera: Tortricidae). Can. Ent. 85: 141–151.CrossRefGoogle Scholar
Smith, S.G. 1954. A partial breakdown of temporal and ecological isolation between Choristoneura species (Lepidoptera: Tortricidae). Evolution 8: 206–224.CrossRefGoogle Scholar
Volney, W.J.A., Liebhold, A.M., and Waters, W.E.. 1983. Effects of temperature, sex, and genetic background on coloration of Choristoneura (Lepidoptera: Tortricidae) populations in south-central Oregon. Can. Ent. 115: 1583–1596.CrossRefGoogle Scholar
Volney, W.J.A., Liebhold, A.M., and Waters, W.E.. 1984. Host associations, phenotypic variation, and mating compatibility of Choristoneura occidentalis and C. retiniana (Lepidoptera: Tortricidae) populations in south-central Oregon. Can. Ent. 116: 813–826.CrossRefGoogle Scholar