If you need an accessible version of this item please contact JSTOR User Support

Chromosomal Relationships among Spiny Pocket Mice, Liomys (Heteromyidae), from Mexico

Fernando A. Cervantes, Consuelo Lorenzo and Oscar G. Ward
Journal of Mammalogy
Vol. 80, No. 3 (Aug., 1999), pp. 823-832
DOI: 10.2307/1383251
Stable URL: http://www.jstor.org/stable/1383251
Page Count: 10
  • Download PDF
  • Cite this Item

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support
Chromosomal Relationships among Spiny Pocket Mice, Liomys (Heteromyidae), from Mexico
Preview not available

Abstract

This study focused on differentially stained karyotypes of the heteromyids Liomys pictus pictus, L. p. plantinarensis, L. spectabilis, and L. irroratus, and described their banding patterns of euchromatin and constitutive heterochromatin to decide if results fit expectations of chromosomal rearrangements leading to karyotypic evolution of the L. irroratus, L. spectabilis, and L. pictus lineage. Results confirmed most previous findings on diploid numbers of chromosomes and fundamental numbers (except for L. irroratus). Homologous G-banding patterns allowed identification of chromosome rearrangements such as centric fusions, pericentric inversions, and addition and deletion of euchromatin. Moreover, C-banding patterns showed that amounts and distribution of constitutive heterochromatin were different among species. Differentially stained karyotypes confirmed previous reports and contributed details on chromosomal morphology. Chromosomal rearrangements found mostly support hypotheses on karyotypic changes that led to chromosomal evolution of the Liomys lineage examined, although the lineage sequence may be different.

Page Thumbnails

  • Thumbnail: Page 
823
    823
  • Thumbnail: Page 
824
    824
  • Thumbnail: Page 
825
    825
  • Thumbnail: Page 
826
    826
  • Thumbnail: Page 
827
    827
  • Thumbnail: Page 
828
    828
  • Thumbnail: Page 
829
    829
  • Thumbnail: Page 
830
    830
  • Thumbnail: Page 
831
    831
  • Thumbnail: Page 
832
    832