---
OA_place: publisher
OA_type: hybrid
_id: '4335'
abstract:
- lang: eng
  text: Genetic incompatibilities between two races of the grasshopper Podisma pedestris,
    which differ by a Robertsonian fusion involving the sex chromosome, have been
    investigated. Crosses were made between four populations spanning the chromosomal
    cline; F1 hybrids between the races, though not between separated populations
    of the same race, showed markedly reduced hatching success. Observations of the
    fate of chromosomes transplanted across the cline supported this finding. Crosses
    between grasshoppers from a mixed population in the cline showed a lower average
    hatching success, but no correlation of this inviability with the chromosomal
    polymorphism. The karyotypes of pre-diapause embryos from both types of cross
    gave no evidence for non-disjunction of the sex chromosome trivalent in heterozygous
    females; an upper limit of 16 per cent can be set on the non-disjunction rate.
    These findings suggest that the karyotypic difference is only a weakly selected
    marker for more fundamental changes in genotype.
acknowledgement: I would like to thank Dr G. M. Hewitt, and M. W. Shaw, for their
  help in collecting these samples, Mrs T. M. East for her help in rearing them, and
  M et Mme Aviotti for their hospitality in France. This work was supported by a N.E.R.C.
  studentship, and by an S.R.C. grant to Dr G. M. Hewitt.
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
citation:
  ama: Barton NH. The fitness of hybrids between two chromosomal races of the grasshopper
    Podisma pedestris. <i>Heredity</i>. 1980;45:47-59. doi:<a href="https://doi.org/10.1038/hdy.1980.49">10.1038/hdy.1980.49</a>
  apa: Barton, N. H. (1980). The fitness of hybrids between two chromosomal races
    of the grasshopper Podisma pedestris. <i>Heredity</i>. Springer Nature. <a href="https://doi.org/10.1038/hdy.1980.49">https://doi.org/10.1038/hdy.1980.49</a>
  chicago: Barton, Nicholas H. “The Fitness of Hybrids between Two Chromosomal Races
    of the Grasshopper Podisma Pedestris.” <i>Heredity</i>. Springer Nature, 1980.
    <a href="https://doi.org/10.1038/hdy.1980.49">https://doi.org/10.1038/hdy.1980.49</a>.
  ieee: N. H. Barton, “The fitness of hybrids between two chromosomal races of the
    grasshopper Podisma pedestris,” <i>Heredity</i>, vol. 45. Springer Nature, pp.
    47–59, 1980.
  ista: Barton NH. 1980. The fitness of hybrids between two chromosomal races of the
    grasshopper Podisma pedestris. Heredity. 45, 47–59.
  mla: Barton, Nicholas H. “The Fitness of Hybrids between Two Chromosomal Races of
    the Grasshopper Podisma Pedestris.” <i>Heredity</i>, vol. 45, Springer Nature,
    1980, pp. 47–59, doi:<a href="https://doi.org/10.1038/hdy.1980.49">10.1038/hdy.1980.49</a>.
  short: N.H. Barton, Heredity 45 (1980) 47–59.
date_created: 2018-12-11T12:08:19Z
date_published: 1980-08-01T00:00:00Z
date_updated: 2024-10-16T14:38:31Z
day: '01'
doi: 10.1038/hdy.1980.49
extern: '1'
fulldoi: https://doi.org/10.1038/hdy.1980.49
intvolume: '        45'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.nature.com/articles/hdy198049
month: '08'
oa: 1
oa_version: Published Version
page: 47 - 59
publication: Heredity
publication_identifier:
  eissn:
  - 1365-2540
  issn:
  - 0018-067X
publication_status: published
publisher: Springer Nature
publist_id: '1697'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The fitness of hybrids between two chromosomal races of the grasshopper Podisma
  pedestris
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 45
year: '1980'
...