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

Das, Nirupama; Das, Rakesh

doi:10.1080/00087114.1992.10797214

Cited by 4 publications

(9 citation statements)

References 12 publications

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“…The chromosome polymorphism is probably due to pericentric inversion and non‐reciprocal translocation. Such chromosomal variation within species has also been recorded in Indian natural populations of Gryllus bimaculatus (DeGeer) (Das & Das 1992).…”

Section: Numbers Of Embryos (And Cells In Parentheses) Of Gryllus Exmentioning

confidence: 58%

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

Yoshimura¹

2005

Entomological Science

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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 patterns. In Gryllus sp., the chromosome configuration showed polymorphism in size and type among individuals, and the distal C-bands of Gryllus sp. were larger than those of G. rubens.

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Section: Numbers Of Embryos (And Cells In Parentheses) Of Gryllus Exmentioning

confidence: 58%

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

Yoshimura¹

2005

Entomological Science

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“…The karyotype of specimens collected at Berhampur seems to show the most similarity to that of current data. However, it is diffi cult to compare the results of their morphometric measurements with our results since the chromosomes used by Das and Das (1992) were extremely condensed. In addition, it is possible that the authors worked with some different species.…”

Section: Discussionmentioning

confidence: 75%

“…bimaculatus was also described in Berhampur samples from Indian populations, but in Nimapara samples more than one pair of chromosomes had NORs (Das and Das, 1992). Similarly, distribution of NORs was also observed in the embryonic cells of other Gryllus species, G .…”

Section: Discussionmentioning

confidence: 80%

“…bimaculatus samples examined was identical to that of G . bimaculatus samples, taken from populations in North Africa (Warchalowska-Sliwa, 1980) and India (Das and Das, 1992), however the chromosome confi gurations in each idiogram apparently differed in the numbers of acrocentric pairs among samples from the different populations. It has been suggested that these differences may have been caused by errors in the morphometric measurements of chromosomes among authors.…”

Section: Discussionmentioning

confidence: 99%

“…The chromosomes 4, 5 and 13, regarded as submeta-or subtelocentric in the report of Warchalowska-Sliwa (1980), correspond to the acrocentric chromosomes in our observation. Das and Das (1992) investigated the chromosomal variation of G . bimaculatus samples from four different populations in India, and detected variations in chromosome confi gurations among and within the populations.…”

Section: Discussionmentioning

confidence: 99%

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The characteristics of karyotype and telomeric satellite DNA sequences in the cricket, <i>Gryllus bimaculatus</i> (Orthoptera, Gryllidae)

Yoshimura

Nakata

Mito

et al. 2006

Cytogenet Genome Res

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The chromosomes derived from the Japanese population of Gryllus bimaculatus were characterized by C-banding and Ag-NOR staining. The chromosome number, 2n = 28 + XX (female)/XO (male), corresponded with that of other populations of G. bimaculatus, but the chromosome configuration in idiograms varied between the populations. NORs were carried on one pair of autosomes and appeared polymorphous. The positive C-bands located at the centromere of all chromosomes and the distal regions of many chromosome pairs, and the size and the distribution pattern of the distal C-heterochromatin showed differences among the chromosomes. In addition, this paper reports on the characteristics of HindIII satellite DNA isolated from the genome of G. bimaculatus. The HindIII repetitive fragments were about 0.54 kb long, and localized at the distal C-bands of the autosomes and the interstitial C-bands of the X chromosome. Molecular analysis showed two distinct satellite DNA sequences, named the GBH535 and GBH542 families, with high AT contents of about 67 and 66%, respectively. The two repetitive families seem to be derived from a common ancestral sequence, and both families possessed the same 13-bp palindrome sequence. The results of Southern blot hybridization suggest that the sequence of the GBH535 family is conserved in the genomic DNAs of Gryllus species, whereas the GBH542 family is a species-specific sequence.

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Karyological observations on the Field Cricket,Gryllus campestrisL. (Gryllidae, Orthoptera)

Türkoğlu

Koca

Akpınar

2003

Zoology in the Middle East

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Karyotypes and meiosis inGryllus bimaculatusDe Geer (Orthoptera: Gryllidae) with a note on the N-banding pattern

Cited by 4 publications

References 12 publications

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

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

The characteristics of karyotype and telomeric satellite DNA sequences in the cricket, <i>Gryllus bimaculatus</i> (Orthoptera, Gryllidae)

Karyological observations on the Field Cricket,Gryllus campestrisL. (Gryllidae, Orthoptera)

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