Tags

Type your tag names separated by a space and hit enter

Physical mapping of rDNA and satDNA in A and B chromosomes of the grasshopper Eyprepocnemis plorans from a Greek population.
Cytogenet Genome Res. 2007; 119(1-2):143-6.CG

Abstract

Adult males and females of the grasshopper Eyprepocnemis plorans from a Greek population were analysed by C-banding, silver impregnation and double FISH for two DNA probes, i.e. ribosomal DNA (rDNA) and a 180-bp tandem repeat DNA (satDNA). This population shows characteristics of rDNA location in A chromosomes that are intermediate between those previously reported for eastern (Caucasus) and western (Spain and Morocco) populations. The four rDNA clusters revealed by FISH in chromosomes X, 9, 10 and 11 in Greek specimens imply two more than the two observed in chromosomes 9 and 11 in the Caucasus, but less than the 12 observed in all chromosomes in Morocco. Remarkably, the X chromosome bears one of the new rDNA locations in Greece with respect to the Caucasus, but it appears to be inactive, in contrast to X chromosomes in western populations, which are usually active. B chromosomes were very frequent in the Greek population, and three variants differing in size were observed, all of these being largely composed of rDNA, with the exception of a small pericentromeric satDNA cluster. The high B frequency suggests that B chromosomes in this population might behave parasitically, in resemblance to Bs in western populations.

Authors+Show Affiliations

Departamento de Genética, Universidad de Granada, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18160794

Citation

Abdelaziz, M, et al. "Physical Mapping of rDNA and satDNA in a and B Chromosomes of the Grasshopper Eyprepocnemis Plorans From a Greek Population." Cytogenetic and Genome Research, vol. 119, no. 1-2, 2007, pp. 143-6.
Abdelaziz M, Teruel M, Chobanov D, et al. Physical mapping of rDNA and satDNA in A and B chromosomes of the grasshopper Eyprepocnemis plorans from a Greek population. Cytogenet Genome Res. 2007;119(1-2):143-6.
Abdelaziz, M., Teruel, M., Chobanov, D., Camacho, J. P., & Cabrero, J. (2007). Physical mapping of rDNA and satDNA in A and B chromosomes of the grasshopper Eyprepocnemis plorans from a Greek population. Cytogenetic and Genome Research, 119(1-2), 143-6.
Abdelaziz M, et al. Physical Mapping of rDNA and satDNA in a and B Chromosomes of the Grasshopper Eyprepocnemis Plorans From a Greek Population. Cytogenet Genome Res. 2007;119(1-2):143-6. PubMed PMID: 18160794.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physical mapping of rDNA and satDNA in A and B chromosomes of the grasshopper Eyprepocnemis plorans from a Greek population. AU - Abdelaziz,M, AU - Teruel,M, AU - Chobanov,D, AU - Camacho,J P M, AU - Cabrero,J, Y1 - 2007/12/14/ PY - 2007/01/22/received PY - 2007/04/05/accepted PY - 2007/12/28/pubmed PY - 2008/1/19/medline PY - 2007/12/28/entrez SP - 143 EP - 6 JF - Cytogenetic and genome research JO - Cytogenet. Genome Res. VL - 119 IS - 1-2 N2 - Adult males and females of the grasshopper Eyprepocnemis plorans from a Greek population were analysed by C-banding, silver impregnation and double FISH for two DNA probes, i.e. ribosomal DNA (rDNA) and a 180-bp tandem repeat DNA (satDNA). This population shows characteristics of rDNA location in A chromosomes that are intermediate between those previously reported for eastern (Caucasus) and western (Spain and Morocco) populations. The four rDNA clusters revealed by FISH in chromosomes X, 9, 10 and 11 in Greek specimens imply two more than the two observed in chromosomes 9 and 11 in the Caucasus, but less than the 12 observed in all chromosomes in Morocco. Remarkably, the X chromosome bears one of the new rDNA locations in Greece with respect to the Caucasus, but it appears to be inactive, in contrast to X chromosomes in western populations, which are usually active. B chromosomes were very frequent in the Greek population, and three variants differing in size were observed, all of these being largely composed of rDNA, with the exception of a small pericentromeric satDNA cluster. The high B frequency suggests that B chromosomes in this population might behave parasitically, in resemblance to Bs in western populations. SN - 1424-859X UR - https://www.unboundmedicine.com/medline/citation/18160794/Physical_mapping_of_rDNA_and_satDNA_in_A_and_B_chromosomes_of_the_grasshopper_Eyprepocnemis_plorans_from_a_Greek_population_ L2 - https://www.karger.com?DOI=10.1159/000109631 DB - PRIME DP - Unbound Medicine ER -