Karyotypes of two American field crickets: Gryllus rubens and Gryllus sp. (Orthoptera: Gryllidae)

@article{Yoshimura2005KaryotypesOT,
  title={Karyotypes of two American field crickets: Gryllus rubens and Gryllus sp. (Orthoptera: Gryllidae)},
  author={Aya Yoshimura},
  journal={Entomological Science},
  year={2005},
  volume={8}
}
  • A. Yoshimura
  • Published 1 September 2005
  • Biology
  • Entomological Science
The karyotypes of Gryllus rubens (Scudder) and Gryllus sp. collected in the US were studied using conventional Giemsa staining and two differential staining methods. Both species had a chromosome complement of 2n = 28 + XX/XO, and the X chromosome was large and metacentric. In addition, nucleolus organizer regions (NOR) were detected in the short arm of one pair in the two species, and the NOR showed variation in size. The two species had species‐specific chromosome configuration and C‐banding… 

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References

SHOWING 1-10 OF 19 REFERENCES

Cytogenetic studies in relation to taxonomy within the family Gryllidae (Orthoptera). I. Subfamily Gryllinae

TLDR
In the Gryllinae, karyotypic differences are shown to be more useful than chromosome number at the species level; differences in chromosome number are useful taxonomically at the generic level, when combined with differences in karyotypes.

Autosomal rearrangement in Gryllus assimilis Fabricius, 1775 (Orthoptera, Gryllidae)

TLDR
The heterozygous karyotype was the result of a chromosomal rearrangement between chromosome pairs 6 and 10, both of which were initially submetacentric.

Karyotypes and meiosis in Gryllus bimaculatus De Geer (Orthoptera: Gryllidae) with a note on the N-banding pattern

SUMMARYBoth mitotic and meiotic chromosomes of Gryllus bimaculatus collected from different populations were studied and the diploid chromosome number was determined to be 2n ♂/♀ = 29/30. The

Cytogenetic studies in gomphocerine grasshoppers. I. Comparative analysis of chromosome C-banding pattern

TLDR
Interspecific comparisons of C-banding patterns reveal the existence of differences between species of either the same or of different genera, which emphasises the dynamic nature of heterochromatin.

C-banding and non-homologous associations in Gryllus argentinus

TLDR
Improved cytological procedures were followed to establish karyotypes and to detect C-segments which resulted in a more precise identification of given chromosome pairs, and end-to-end pachytene associations reacted intensely to the C-procedure.

Evolutionary dynamics of satellite DNA family PIM357 in species of the genus Pimelia (Tenebrionidae, Coleoptera).

TLDR
The data suggest that distinct demographic and phylogenetic patterns related to the colonization of the volcanic Canarian island chain account for particular evolutionary dynamics of the repeat DNA family in this group.

Equilocality of heterochromatin distribution and heterochromatin heterogeneity in acridid grasshoppers

TLDR
Comparative fluorescence studies on the chromosome of ten species of acridid grasshoppers indicate that the only regions to fluoresce differentially are those that C-band, and that structural rearrangements that lead to the relocation of centric C-bands, either within or between species, may also be accompanied by a change in fluorescence behaviour.

A new family of satellite DNA sequences as a major component of centromeric heterochromatin in owls (Strigiformes)

TLDR
The results suggest that the satellite DNA sequence has evolved by concerted evolution in the Strigidae and that it is a good taxonomic and phylogenetic marker to examine genetic diversity between Strigiformes species.

An acetic acid dissociation, air-drying technique for insect chromosomes, with aceto-lactic orcein staining.

TLDR
The method differs from mammalian techniques for somatic chromosomes in that it uses very small amounts of material and an ant, Dorymyrmex sp.

Controlled silver-staining of nucleolus organizer regions with a protective colloidal developer: a 1-step method

A 1-step silver-staining technique, requiring only 2 min to perform, is described for the differential staining of nucleolus organizer regions. A protective colloidal developer is used to control the