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Interspecific Mating and Cytological Studies of Closely Related Species of Ips DeGeer and Orthotomicus Ferrari (Coleoptera: Scolytidae)1

Published online by Cambridge University Press:  31 May 2012

Gerald N. Lanier
Gerald N. Lanier
Affiliation:
University of California, Division of Entomology and Acarology, Berkeley
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Abstract

Interspecific pairing of closely related species of Ips and Orthotomicus was undertaken to test their degree of breeding isolation. Pairings of the following species frequently resulted in sperm transfer but no eclosion: Ips mexicanus × I. concinnus (group I), confusus × montanus (group IX), plastographus (group III) × pini (group IV) and Orthotomicus latidens × O. sabinianae.

Mating was generally unsuccessful when the more distantly related species, confusus × plastographus and confusus × pini, were paired.

Individuals which produce all-female broods were discovered in a population of O. latidens. About 50% of the eggs deposited by these females hatched, whereas 92% of the eggs from “normal” females produced larvae.

Cytological investigations revealed no constant differences between the karyotypes of I. mexicanus and concinnus (7AA+Xyp), O. latidens and sabinianae (9AA+Xyp), or between I. confusus and montanus (15AA+Xyp). I. pini (oregonis) and plastographus also have karyotypic formulae of 15AA+Xyp, but both are easily distinguished from confusus and montanus and an atypical chromosome in pini (oregonis) distinguishes it from plastographus. The mexicanus and concinnus karyotype and that of O. latidens and sabinianae can be directly derived from each other by fusion or fission. Their relationship to the karyotype of the European species O. proximus (6AA+Xy), is plausible but their karyotypes are composed of a remarkably different number of autosomal arms from those known for other species of Ips.

Type
Articles
Information
The Canadian Entomologist , Volume 98 , Issue 2 , February 1966 , pp. 175 - 188
Copyright
Copyright © Entomological Society of Canada 1966

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References

Anderson, R. F. 1948. Host selection by the pine engraver. J. econ. Ent. 41: 596–602.CrossRefGoogle Scholar
Bedard, W. D. 1962. Media for the rearing of immature bark beetles. Ph.D. Thesis, University of California, Berkeley.Google Scholar
Chamberlin, W. J. 1939. The bark and timber beetles of North America. Corvallis, Oregon. Ore. State Coll. Coop. Assoc., 513 pp.Google Scholar
Dobzhansky, T., and Epling, C.. 1944. Taxonomy, geographic distribution, and ecology of Drosophila pseudoobscura and its relatives. Publ. Carneg. Instn 554, pp. 1–46.Google Scholar
Hay, C. J. 1956. Experimental crossing of mountain pine beetle with Black Hills beetle. Ann. ent. Soc. Amer. 49: 567–571.CrossRefGoogle Scholar
Hopping, G. R. 1961. Techniques for rearing Ips DeGeer (Coleoptera: Scolytidae). Canad. Ent. 93: 1050–1053.CrossRefGoogle Scholar
Hopping, G. R. 1962. The sex ratios in Ips tridens (Mannerheim) (Coleoptera: Scolytidae). Canad. Ent. 94: 506.CrossRefGoogle Scholar
Hopping, G. R. 1963a, Generic characteristics in the tribe Ipini (Coleoptera: Scolytidae), with a new species, a new combination and new synonymy. Canad. Ent. 95: 61–68.CrossRefGoogle Scholar
Hopping, G. R. 1963b. The breeding evidence indicating two genetic types of females of Ips tridens (Mannerheim) (Coleoptera: Scolytidae). Canad. Ent. 96: 117–118.CrossRefGoogle Scholar
Hopping, G. R. 1963c. The natural groups of species in the genus Ips DeGeer (Coleoptera: Scolytidae) in North America. Canad. Ent. 95: 508–516.CrossRefGoogle Scholar
Hopping, G. R. 1963d. The North American species in group I of Ips DeGeer (Coleoptera: Scolytidae). Canad. Ent. 95: 1091–1096.CrossRefGoogle Scholar
Hopping, G. R. 1964a. Personal communication.Google Scholar
Hopping, G. R. 1964b. The North American species in groups IV and V of Ips DeGeer (Coleoptera: Scolytidae). Canad. Ent. 96: 970–978.CrossRefGoogle Scholar
Hopping, G. R. 1965a. The North American species in group VIII of Ips DeGeer (Coleoptera: Scolytidae). Canad. Ent. 97: 159–172.CrossRefGoogle Scholar
Hopping, G. R. 1965b. Personal communication.Google Scholar
Hopping, G. R. 1965c. The North American species in group IX of Ips DeGeer (Coleoptera: Scolytidae). Canad. Ent. 97: 422–434.CrossRefGoogle Scholar
Lancefield, D. E. 1929. A genetic study of crosses of two races or physiological species of Drosophila obscura. Z. indukt. Abstamm. Vererbungsl. 52: 287–317.Google Scholar
Malogolowkin, C., and Poulson, D. F.. 1957. Infective transfer of maternally inherited abnormal sex-ratio in Drosophila willistoni. Science 126: 32.CrossRefGoogle ScholarPubMed
Poulson, D. F., and Sakaguchi, B.. 1961. Hereditary infections in Drosophila. Genetics 46: 890–891.Google Scholar
Schedl, K. E. 1955. Die Kiefern-Borkenkafer Guatemalas. Z. angew. Ent. 38: 1–48.CrossRefGoogle Scholar
Smith, S. G. 1950. The cyto-taxonomy of Coleoptera. Canad. Ent. 82: 58–68.CrossRefGoogle Scholar
Smith, S. G. 1952. The cytology of Sitophilus (= Calandra) oryzae (L.), S. granarius (L.) and some other Rhynchophora (Coleoptera). Cytologia, Tokyo 17: 50–70.CrossRefGoogle Scholar
Smith, S. G. 1953. Chromosome numbers of Coleoptera. Heredity 7: 31–48.CrossRefGoogle Scholar
Smith, S. G. 1956a. Cytotaxonomy of Curculionidae (Coleoptera). Amer. Nat. 90: 137–138.CrossRefGoogle Scholar
Smith, S. G. 1956b. Chromosomal polymorphism in a bark weevil. Nature, Lond. 177: 386.CrossRefGoogle Scholar
Smith, S. G. 1960. Chromosome numbers of Coleoptera, II. Canad. J. Genet. Cytol. 2: 67–88.CrossRefGoogle Scholar
Smith, S. G. 1962. Cytogenetic pathways in beetle speciation. Canad. Ent. 94: 941–955.CrossRefGoogle Scholar
Trimble, F. M. 1924. Life history and habits of two Pacific Coast bark beetles. Ann. ent. Soc. Amer. 17: 382–391.CrossRefGoogle Scholar
Virkki, N. 1960. Cytology of male meiosis in certain European forest beetles of the families Scolytidae, Cleridae, and Anobiidae. Acad. Sci. Fenn. (A), Biol. 49: 3–16.Google Scholar
Vité, J. P., and Gara, R. I.. 1962. Volatile attractants from ponderosa pine attacked by bark beetles (Coleoptera: Scolytidae). Contr. Boyce Thompson Inst. 21: 251–273.Google Scholar
White, M. J. D. 1956. Adaptive chromosomal polymorphism in an Australian grasshopper. Evolution 10: 298–313.CrossRefGoogle Scholar
Wood, D. L. 1961. Stridulation in the genus Ips DeGeer. Pan-Pacif. Ent. 37: 187–188.Google Scholar
Wood, D. L. 1962. The attraction created by males of a bark beetle, Ips confusus (LeConte), attacking ponderosa pine. Pan-Pacif. Ent. 38: 141–145.Google Scholar
Wood, D. L., and Vité, J. P.. 1961. Studies on the host selection behavior of Ips confusus (LeConte) (Coleoptera: Scolytidae) attacking Pinus ponderosa. Contr. Boyce Thompson Inst. 21: 79–96.Google Scholar
Wood, S. L. 1957. Distributional notes on and synonymies of some North American Scolytidae (Coleoptera). Canad. Ent. 89: 396–403.CrossRefGoogle Scholar