---
_id: '3666'
abstract:
- lang: eng
  text: We have made an extensive allozyme survey of 21 enzyme and protein loci in
    populations of the alpine grasshopper Podisma pedestris. This species occurs in
    two races, differing by a chromosomal fusion which separates the ancestral XO/XX
    race from a derived neo-XY race. These races also differ in DNA content, and hybrids
    between them have reduced viability. Electrophoresis reveals that the amount of
    genetic differentiation between these races is no greater than the variation among
    populations within each race. Both larger-scale surveys and a detailed survey
    of an area where the races hybridize, show that the chromosomal change is not
    correlated with gene frequency changes at any of the 21 loci studied. These findings
    are consistent with recently developed theory concerning the strength of the barrier
    to gene flow posed by a hybrid zone with characteristics such as those measured
    experimentally in Podisma. It is argued that hybrid zones in other species which
    involve allozymic differences do so because of stronger selection against hybrids
    rather than through mating isolation.
article_processing_charge: No
article_type: original
author:
- first_name: Bruce
  full_name: Halliday, Bruce
  last_name: Halliday
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
- first_name: Godfrey
  full_name: Hewitt, Godfrey
  last_name: Hewitt
citation:
  ama: Halliday B, Barton NH, Hewitt G. Electrophoretic analysis of a chromosomal
    hybrid zone in the grasshopper Podisma pedestris. <i>Biological Journal of the
    Linnean Society</i>. 1983;19(1):51-62. doi:<a href="https://doi.org/10.1111/j.1095-8312.1983.tb00776.x">10.1111/j.1095-8312.1983.tb00776.x</a>
  apa: Halliday, B., Barton, N. H., &#38; Hewitt, G. (1983). Electrophoretic analysis
    of a chromosomal hybrid zone in the grasshopper Podisma pedestris. <i>Biological
    Journal of the Linnean Society</i>. Oxford University Press. <a href="https://doi.org/10.1111/j.1095-8312.1983.tb00776.x">https://doi.org/10.1111/j.1095-8312.1983.tb00776.x</a>
  chicago: Halliday, Bruce, Nicholas H Barton, and Godfrey Hewitt. “Electrophoretic
    Analysis of a Chromosomal Hybrid Zone in the Grasshopper Podisma Pedestris.” <i>Biological
    Journal of the Linnean Society</i>. Oxford University Press, 1983. <a href="https://doi.org/10.1111/j.1095-8312.1983.tb00776.x">https://doi.org/10.1111/j.1095-8312.1983.tb00776.x</a>.
  ieee: B. Halliday, N. H. Barton, and G. Hewitt, “Electrophoretic analysis of a chromosomal
    hybrid zone in the grasshopper Podisma pedestris,” <i>Biological Journal of the
    Linnean Society</i>, vol. 19, no. 1. Oxford University Press, pp. 51–62, 1983.
  ista: Halliday B, Barton NH, Hewitt G. 1983. Electrophoretic analysis of a chromosomal
    hybrid zone in the grasshopper Podisma pedestris. Biological Journal of the Linnean
    Society. 19(1), 51–62.
  mla: Halliday, Bruce, et al. “Electrophoretic Analysis of a Chromosomal Hybrid Zone
    in the Grasshopper Podisma Pedestris.” <i>Biological Journal of the Linnean Society</i>,
    vol. 19, no. 1, Oxford University Press, 1983, pp. 51–62, doi:<a href="https://doi.org/10.1111/j.1095-8312.1983.tb00776.x">10.1111/j.1095-8312.1983.tb00776.x</a>.
  short: B. Halliday, N.H. Barton, G. Hewitt, Biological Journal of the Linnean Society
    19 (1983) 51–62.
date_created: 2018-12-11T12:04:31Z
date_published: 1983-02-01T00:00:00Z
date_updated: 2022-01-25T14:52:15Z
day: '01'
doi: 10.1111/j.1095-8312.1983.tb00776.x
extern: '1'
intvolume: '        19'
issue: '1'
keyword:
- Hybrid zone
- Electrophoresis
- Podisma pedestris
- Polymorphism
language:
- iso: eng
main_file_link:
- url: https://academic.oup.com/biolinnean/article-abstract/19/1/51/2666256?redirectedFrom=fulltext
month: '02'
oa_version: None
page: 51 - 62
publication: Biological Journal of the Linnean Society
publication_identifier:
  eissn:
  - 1095-8312
  issn:
  - 0024-4066
publication_status: published
publisher: Oxford University Press
publist_id: '2717'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electrophoretic analysis of a chromosomal hybrid zone in the grasshopper Podisma
  pedestris
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 19
year: '1983'
...