Elsevier

Crop Protection

Volume 2, Issue 1, March 1983, Pages 85-95
Crop Protection

The biotype concept and its application to insect pests of agriculture

https://doi.org/10.1016/0261-2194(83)90028-5Get rights and content

Abstract

The use of the term biotype of insect pests of agriculture is discussed in the broad context of species, populations and individuals. There have generally been two quite distinct usages and thus two different concepts. The first is a general concept which applies, confusingly, both to individuals and to populations of a species which share certain biological characteristics, usually concerning virulence on different host varieties, with little or no knowledge of their genetic bases. This is generally synonymous with the term host race, used by many authors. The second is a very specific concept in which a particular gene or genotype for virulence in a pest is known to correspond with a particular gene for resistance in a host plant—the gene-for-gene relationship. We argue that the first concept is so general as to be of little value, and in some examples, such as the brown planthopper of rice, is potentially misleading. The specific concept depends on detailed genetic analyses which are available for very few examples and is thus of limited applicability. We conclude that the confusion of the two distinct concepts is dangerous. It is not possible to argue from the general to the specific. The term biotype has often been used to cover our ignorance of the detail of any particular insect/plant interaction.

References (52)

  • H.H. Flor

    The complementary genic systems in flax and flax rust

    Advances in Genetics

    (1956)
  • M.D. Pathak

    Utilization of insect-plant interactions in pest control

  • S.H. Berlocher

    Biochemical approaches to strain, race and species discriminations

  • G.L. Bush

    Sympatric host race formation and speciation in frugivorous files of the genus Rhagoletis (Diptera, Tephritidae)

    Evolution

    (1969)
  • G.L. Bush

    Modes of animal speciation

    Annual Review of Ecology and Systematics

    (1975)
  • G.L. Bush

    Sympatric speciation in phytophagous parasitic insects

  • A.J. Cain

    Animal Species and their Evolution

  • C.H. Cheng et al.

    Studies on varietal resistance to the brown planthopper in Taiwan

  • H.C. Chiang et al.

    Differences in ecological responses of three biotypes of Ostrinia nubilalis from the north central United States

    Annals of the Entomological Soceity of America

    (1968)
  • H.C. Chiang et al.

    Morphometric variability related to ecological conditions of three biotypes of Ostrinia nubilalis (Lepidoptera: Pyraustidae) in north central United States

    Annals of the Entomological Society of Americ

    (1970)
  • M.F. Claridge et al.

    The ‘biotypes’ of the rice brown planthopper Nilaparvata lugens

    Entomologia experimentalis et applicata

    (1980)
  • M.F. Claridge et al.

    Virulence to rice cultivars and selection for virulence in populations of the brown planthopper Nilaparvata lugens

    Entomologia experimentalis et applicata

    (1982)
  • M.F. Claridge et al.

    Adaptations of brown planthopper (Nilaparvata lugens) populations to rice varieties in Sri Lanka

    Entomologia experimentalis et applicata

    (1982)
  • M.F. Claridge et al.

    Variation in populations of the brown planthopper, Nilaparvata lugens (Stål), in south east Asia

    Acta Entomologica Fennica

    (1982)
  • P.R. Day

    Genetics of Host-Parasite Interaction

  • P. DeBach

    Uniparental, sibling and semi-species in relation to taxonomy and biological control

    Israel Journal of Entomology

    (1969)
  • J. Den Hollander et al.

    The genetics of the ‘biotypes’ of the rice brown planthopper, Nilaparvata lugens

    Entomologia experimentalis et applicata

    (1981)
  • T. Dobzhansky

    Genetics and the Origin of Species

  • V.F. Eastop

    Biotypes of aphids

    Bulletin of the Entomological Society of New Zealand

    (1973)
  • E.H. Everson et al.

    Breeding approaches in wheat

  • B.D. Frazer

    Population dynamics and recognition of biotypes in the pea aphid (Homoptera: Aphididae)

    Canadian Entomologist

    (1972)
  • D.J. Futuyma et al.

    Non-allopatric speciation in animals

    Systematic Zoology

    (1980)
  • R.L. Gallun

    Genetic basis of Hessian fly epidemics

    Annals of the New York Academy of Sciences

    (1977)
  • R.L. Gallun et al.

    Genetic factors affecting expression and stability of resistance

  • D. Gonzalez et al.

    Biotype discrimination and its importance in biological control

  • J.H. Hatchett et al.

    Frequency of Hessian fly, Mayetiola destructor, races in field populations

    Annals of the Entomological Society of America

    (1968)
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