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https://locus.ufv.br//handle/123456789/21562
Tipo: | Artigo |
Título: | Cytogenetic and flow cytometry data expand knowledge of genome evolution in three Coffea species |
Autor(es): | Clarindo, Wellington Ronildo Carvalho, Carlos Roberto Mendonça, Maria Andréia Corrêa |
Abstract: | Karyotype and nuclear 2C-value data are considered important in taxonomic and evolutionary approaches in Coffea. Still, new methods are needed to further support such studies, especially to determine the progenitors of Coffea arabica. In this work, new cytogenetic and flow cytometry data were used to compare Coffea arabica, Coffea canephora and Coffea congensis. These data corroborate the hypothesis that C. canephora and C. congensis originated from a single ancestor, whose basic chromosome number was x = 11. In agreement with the observations of other authors, the karyotype and mean 2C-values confirm that C. arabica is a true allotetraploid originating from two diploid Coffea species with similar genomes. Although C. canephora and C. congensis have been considered potential progenitors of C. arabica, karyotype comparison revealed that only one of these species may be parental to C. arabica. These accurate cytogenetic and flow cytometry data contribute to expand our knowledge of the Coffea genome, as well as of possible progenitors of C. arabica. |
Palavras-chave: | Coffea Nuclear 2C-value Base composition Karyotype Genome evolution Flow cytometry |
Editor: | Plant Systematics and Evolution |
Tipo de Acesso: | Springer-Verlag |
URI: | https://doi.org/10.1007/s00606-012-0595-7 http://www.locus.ufv.br/handle/123456789/21562 |
Data do documento: | Abr-2012 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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artigo.pdf Until 2100-12-31 | Texto completo | 416,76 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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