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Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location.
Genetica. 2011 Jul; 139(7):921-31.G

Abstract

We analyze the chromosomal location of 5S rDNA clusters in 29 species of grasshoppers belonging to the family Acrididae. There was extensive variation among species for the number and location of 5S rDNA sites. Out of 148 sites detected, 75% were proximally located, 21.6% were interstitial, and only 3.4% were distal. The number of 5S rDNA sites per species varied from a single chromosome pair (in six species) to all chromosome pairs (in five species), with a range of intermediate situations. Thirteen chromosomes from eight species carried two 5S rDNA clusters. At intraspecific level, differences among populations were detected in Eyprepocnemis plorans, and some heteromorphisms have also been observed in some species. Double FISH for 5S rDNA and H3 histone gene DNA, performed on 17 of these 29 species, revealed that both markers are sometimes placed in a same chromosome but at different location, whereas they appeared to co-localize in five species (Calliptamus barbarus, Heteracris adpersa, Aiolopus strepens, Oedipoda charpentieri and O. coerulescens). Double fiber-FISH in A. strepens and O. coerulescens showed that the two DNAs are closely interspersed with variable relative amounts of both classes of DNA. Finally, no correlation was observed between the number of 5S and 45S rDNA clusters in 23 species where this information was available. These results are discussed in the light of possible mechanisms of spread that led to the extensive variation in the number of clusters observed for both rDNA types in acridid grasshoppers.

Authors+Show Affiliations

Departamento de Biologia, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, São Paulo, Brazil.No 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

21755328

Citation

Cabral-de-Mello, Diogo C., et al. "Evolutionary Dynamics of 5S rDNA Location in Acridid Grasshoppers and Its Relationship With H3 Histone Gene and 45S rDNA Location." Genetica, vol. 139, no. 7, 2011, pp. 921-31.
Cabral-de-Mello DC, Cabrero J, López-León MD, et al. Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location. Genetica. 2011;139(7):921-31.
Cabral-de-Mello, D. C., Cabrero, J., López-León, M. D., & Camacho, J. P. (2011). Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location. Genetica, 139(7), 921-31. https://doi.org/10.1007/s10709-011-9596-7
Cabral-de-Mello DC, et al. Evolutionary Dynamics of 5S rDNA Location in Acridid Grasshoppers and Its Relationship With H3 Histone Gene and 45S rDNA Location. Genetica. 2011;139(7):921-31. PubMed PMID: 21755328.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location. AU - Cabral-de-Mello,Diogo C, AU - Cabrero,Josefa, AU - López-León,María Dolores, AU - Camacho,Juan Pedro M, Y1 - 2011/07/14/ PY - 2011/02/17/received PY - 2011/07/01/accepted PY - 2011/7/15/entrez PY - 2011/7/15/pubmed PY - 2013/6/25/medline SP - 921 EP - 31 JF - Genetica JO - Genetica VL - 139 IS - 7 N2 - We analyze the chromosomal location of 5S rDNA clusters in 29 species of grasshoppers belonging to the family Acrididae. There was extensive variation among species for the number and location of 5S rDNA sites. Out of 148 sites detected, 75% were proximally located, 21.6% were interstitial, and only 3.4% were distal. The number of 5S rDNA sites per species varied from a single chromosome pair (in six species) to all chromosome pairs (in five species), with a range of intermediate situations. Thirteen chromosomes from eight species carried two 5S rDNA clusters. At intraspecific level, differences among populations were detected in Eyprepocnemis plorans, and some heteromorphisms have also been observed in some species. Double FISH for 5S rDNA and H3 histone gene DNA, performed on 17 of these 29 species, revealed that both markers are sometimes placed in a same chromosome but at different location, whereas they appeared to co-localize in five species (Calliptamus barbarus, Heteracris adpersa, Aiolopus strepens, Oedipoda charpentieri and O. coerulescens). Double fiber-FISH in A. strepens and O. coerulescens showed that the two DNAs are closely interspersed with variable relative amounts of both classes of DNA. Finally, no correlation was observed between the number of 5S and 45S rDNA clusters in 23 species where this information was available. These results are discussed in the light of possible mechanisms of spread that led to the extensive variation in the number of clusters observed for both rDNA types in acridid grasshoppers. SN - 1573-6857 UR - https://www.unboundmedicine.com/medline/citation/21755328/Evolutionary_dynamics_of_5S_rDNA_location_in_acridid_grasshoppers_and_its_relationship_with_H3_histone_gene_and_45S_rDNA_location_ L2 - https://doi.org/10.1007/s10709-011-9596-7 DB - PRIME DP - Unbound Medicine ER -