Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.

Although most birds show karyotypes with diploid number (2n) around 80, with few macrochromosomes and many microchromosomes pairs, some groups, such as the Accipitriformes, are characterized by a large karyotypic reorganization, which resulted in complements with low diploid numbers, and a smaller n...

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Autores principales:	Carlos A Carvalho, Ivanete O Furo, Patricia C M O'Brien, Jorge Pereira, Rebeca E O'Connor, Darren Griffin, Malcolm Ferguson-Smith, Edivaldo Herculano Corrêa de Oliveira
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bf179b5f7bbf42e7a505e7e090869d03
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spelling	oai:doaj.org-article:bf179b5f7bbf42e7a505e7e090869d032021-12-02T20:12:48ZComparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.1932-620310.1371/journal.pone.0259905https://doaj.org/article/bf179b5f7bbf42e7a505e7e090869d032021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0259905https://doaj.org/toc/1932-6203Although most birds show karyotypes with diploid number (2n) around 80, with few macrochromosomes and many microchromosomes pairs, some groups, such as the Accipitriformes, are characterized by a large karyotypic reorganization, which resulted in complements with low diploid numbers, and a smaller number of microchromosomal pairs when compared to other birds. Among Accipitriformes, the Accipitridae family is the most diverse and includes, among other subfamilies, the subfamily Aquilinae, composed of medium to large sized species. The Black-Hawk-Eagle (Spizaetus tyrannus-STY), found in South America, is a member of this subfamily. Available chromosome data for this species includes only conventional staining. Hence, in order to provide additional information on karyotype evolution process within this group, we performed comparative chromosome painting between S. tyrannus and Gallus gallus (GGA). Our results revealed that at least 29 fission-fusion events occurred in the STY karyotype, based on homology with GGA. Fissions occurred mainly in syntenic groups homologous to GGA1-GGA5. On the other hand, the majority of the microchromosomes were found fused to other chromosomal elements in STY, indicating these rearrangements played an important role in the reduction of the 2n to 68. Comparison with hybridization pattern of the Japanese-Mountain-Eagle (Nisaetus nipalensis orientalis), the only Aquilinae analyzed by comparative chromosome painting previously, did not reveal any synapomorphy that could represent a chromosome signature to this subfamily. Therefore, conclusions about karyotype evolution in Aquilinae require additional painting studies.Carlos A CarvalhoIvanete O FuroPatricia C M O'BrienJorge PereiraRebeca E O'ConnorDarren GriffinMalcolm Ferguson-SmithEdivaldo Herculano Corrêa de OliveiraPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0259905 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Carlos A Carvalho Ivanete O Furo Patricia C M O'Brien Jorge Pereira Rebeca E O'Connor Darren Griffin Malcolm Ferguson-Smith Edivaldo Herculano Corrêa de Oliveira Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
description	Although most birds show karyotypes with diploid number (2n) around 80, with few macrochromosomes and many microchromosomes pairs, some groups, such as the Accipitriformes, are characterized by a large karyotypic reorganization, which resulted in complements with low diploid numbers, and a smaller number of microchromosomal pairs when compared to other birds. Among Accipitriformes, the Accipitridae family is the most diverse and includes, among other subfamilies, the subfamily Aquilinae, composed of medium to large sized species. The Black-Hawk-Eagle (Spizaetus tyrannus-STY), found in South America, is a member of this subfamily. Available chromosome data for this species includes only conventional staining. Hence, in order to provide additional information on karyotype evolution process within this group, we performed comparative chromosome painting between S. tyrannus and Gallus gallus (GGA). Our results revealed that at least 29 fission-fusion events occurred in the STY karyotype, based on homology with GGA. Fissions occurred mainly in syntenic groups homologous to GGA1-GGA5. On the other hand, the majority of the microchromosomes were found fused to other chromosomal elements in STY, indicating these rearrangements played an important role in the reduction of the 2n to 68. Comparison with hybridization pattern of the Japanese-Mountain-Eagle (Nisaetus nipalensis orientalis), the only Aquilinae analyzed by comparative chromosome painting previously, did not reveal any synapomorphy that could represent a chromosome signature to this subfamily. Therefore, conclusions about karyotype evolution in Aquilinae require additional painting studies.
format	article
author	Carlos A Carvalho Ivanete O Furo Patricia C M O'Brien Jorge Pereira Rebeca E O'Connor Darren Griffin Malcolm Ferguson-Smith Edivaldo Herculano Corrêa de Oliveira
author_facet	Carlos A Carvalho Ivanete O Furo Patricia C M O'Brien Jorge Pereira Rebeca E O'Connor Darren Griffin Malcolm Ferguson-Smith Edivaldo Herculano Corrêa de Oliveira
author_sort	Carlos A Carvalho
title	Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
title_short	Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
title_full	Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
title_fullStr	Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
title_full_unstemmed	Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.
title_sort	comparative chromosome painting in spizaetus tyrannus and gallus gallus with the use of macro- and microchromosome probes.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/bf179b5f7bbf42e7a505e7e090869d03
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Comparative chromosome painting in Spizaetus tyrannus and Gallus gallus with the use of macro- and microchromosome probes.

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