R
Ricardo José Gunski
Researcher at Universidade Federal do Pampa
Publications - 66
Citations - 566
Ricardo José Gunski is an academic researcher from Universidade Federal do Pampa. The author has contributed to research in topics: Microchromosome & Karyotype. The author has an hindex of 12, co-authored 61 publications receiving 424 citations.
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Molecular cytogenetic characterization of multiple intrachromosomal rearrangements in two representatives of the genus Turdus (Turdidae, Passeriformes).
Rafael Kretschmer,Ricardo José Gunski,Analía Del Valle Garnero,Ivanete de Oliveira Furo,Patricia C. M. O’Brien,Malcolm A. Ferguson-Smith,Edivaldo Herculano Corrêa de Oliveira +6 more
TL;DR: Karyotype analysis in Turdus revealed that this genus has derived characteristics in relation to the putative avian ancestral karyotype, highlighting the importance of using new tools for analysis of chromosomal evolution in birds, such as the probes derived from L. albicollis, which make it possible to identify intrachromosomal rearrangements not visible with the use of GGA chromosome painting solely.
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Introducing the Bird Chromosome Database: An Overview of Cytogenetic Studies in Birds.
Tiago Marafiga Degrandi,Suziane Alves Barcellos,Alice Lemos Costa,Analía Del Valle Garnero,Iris Hass,Ricardo José Gunski +5 more
TL;DR: The BCD will enable researchers to identify the main knowledge gaps in bird cytogenetics, including the most under-sampled groups, and make inferences on chromosomal homologies in phylogenetic studies.
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Genomic Organization of Repetitive DNA in Woodpeckers (Aves, Piciformes): Implications for Karyotype and ZW Sex Chromosome Differentiation.
Thays Duarte de Oliveira,Rafael Kretschmer,Natasha Avila Bertocchi,Tiago Marafiga Degrandi,Edivaldo Herculano Corrêa de Oliveira,Marcelo de Bello Cioffi,Analía Del Valle Garnero,Ricardo José Gunski +7 more
TL;DR: The results highlight the importance of microsatellite sequences in differentiation of sex chromosomes, and the accumulation of these sequences is probably responsible for the enlargement of the Z chromosome.
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Chromosomal Mapping of Repetitive DNAs in Myiopsitta monachus and Amazona aestiva (Psittaciformes, Psittacidae) with Emphasis on the Sex Chromosomes.
Ivanete de Oliveira Furo,Rafael Kretschmer,Michelly S. dos Santos,Carlos A. de Lima Carvalho,Ricardo José Gunski,Patricia C. M. O’Brien,Malcolm A. Ferguson-Smith,Marcelo de Bello Cioffi,Edivaldo Herculano Corrêa de Oliveira +8 more
TL;DR: It is suggested that the increase in length of the W chromosome in M. monachus is due to the amplification of repetitive elements, which highlights their significant role in the evolutionary process of sex chromosome differentiation.
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Chromosome mapping of the large elaenia (Elaenia spectabilis): evidence for a cytogenetic signature for passeriform birds?
Rafael Kretschmer,Edivaldo Herculano Corrêa de Oliveira,Michelly S. dos Santos,Ivanete de Oliveira Furo,Patricia C. M. O’Brien,Malcolm A. Ferguson-Smith,Analía Del Valle Garnero,Ricardo José Gunski +7 more
TL;DR: The characterization of the karyotype of Elaenia spectabilis (Passeriformes, Tyrannidae) by means of classical and molecular cytogenetics suggests that the centric fission in GGA1, as well as the inversions observed in segments homologous to GGA 1q, appeared in the early history of Passeriforms because they could be detected in Oscine and Suboscine species.