---
res:
  bibo_abstract:
  - 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.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Nicholas H
      foaf_name: Barton, Nicholas H
      foaf_surname: Barton
      foaf_workInfoHomepage: http://www.librecat.org/personId=4880FE40-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-8548-5240
  bibo_doi: 10.1038/hdy.1980.49
  bibo_volume: 45
  dct_date: 1980^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0018-067X
  - http://id.crossref.org/issn/1365-2540
  dct_language: eng
  dct_publisher: Springer Nature@
  dct_title: The fitness of hybrids between two chromosomal races of the grasshopper
    Podisma pedestris@
...
