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Literature DB >> 8781187

Genomic dispersion of 28S rDNA during karyotypic evolution in the ant genus Myrmecia (Formicidae)

H Hirai¹, M T Yamamoto, R W Taylor, H T Imai.

Abstract

The chromosomal localization of 28S rDNA was investigated in 16 speices of the Australian ant genus Myrmecia, with 2n numbers ranging from 4 to 76, using the fluorescence in situ hybridization method and karyographic analysis. A unique phenomenon was observed: the number of chromosomes carrying 28S rDNA increases from 2 in species with low chromosome numbers to 19 in species with high chromosome numbers. This is termed rDNA dispersion. Centric fission and a reciprocal translocation that occurs in C-bands were detected as the major mechanisms involved in rDNA dispersion.

Mesh：

Substances：
DNA, Ribosomal

Year: 1996 PMID： 8781187 DOI： 10.1007/bf02509500

Source DB: PubMed Journal: Chromosoma ISSN： 0009-5915 Impact factor: 4.316

12 in total

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Authors: H Hirai; M T Yamamoto; K Ogura; Y Satta; M Yamada; R W Taylor; H T Imai
Journal: Chromosoma Date: 1994-06 Impact factor: 4.316

12 in total

1. Chromosome fission associated with growth of ribosomal DNA in Neodiprion abietis (Hymenoptera: Diprionidae).

Authors: J Rousselet; L Monti; M A Auger-Rozenberg; J S Parker; F Lemeunier
Journal: Proc Biol Sci Date: 2000-09-22 Impact factor: 5.349

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Authors: R L Kolnicki
Journal: Proc Natl Acad Sci U S A Date: 2000-08-15 Impact factor: 11.205

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Authors: H Hirai; T Taguchi; A K Godwin
Journal: Chromosome Res Date: 1999 Impact factor: 5.239

4. Chromosomal divergence and evolutionary inferences in Rhodniini based on the chromosomal location of ribosomal genes.

Authors: Sebastián Pita; Francisco Panzera; Inés Ferrandis; Cleber Galvão; Andrés Gómez-Palacio; Yanina Panzera
Journal: Mem Inst Oswaldo Cruz Date: 2013-05 Impact factor: 2.743

5. Molecular cytogenetic mapping of Cucumis sativus and C. melo using highly repetitive DNA sequences.

Authors: Dal-Hoe Koo; Young-Woo Nam; Doil Choi; Jae-Wook Bang; Hans de Jong; Yoonkang Hur
Journal: Chromosome Res Date: 2010-03-03 Impact factor: 5.239

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Authors: Petr Nguyen; Ken Sahara; Atsuo Yoshido; Frantisek Marec
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Authors: Hirohisa Hirai
Journal: Cells Date: 2020-04-15 Impact factor: 6.600

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Authors: Hieronim Golczyk; Robert Hasterok; Marek Szklarczyk
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10. Evolutionary insight on localization of 18S, 28S rDNA genes on homologous chromosomes in Primates genomes.

Authors: Sofia Mazzoleni; Michail Rovatsos; Odessa Schillaci; Francesca Dumas
Journal: Comp Cytogenet Date: 2018-01-24 Impact factor: 1.800