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Capítulo de Libro

Cytological features of penaut genome

Título del libro: The Peanut Genome

Seijo, José GuillermoIcon ; Samoluk, Sergio SebastiánIcon ; Ortiz, Alejandra MarcelaIcon ; Silvestri, María CelesteIcon ; Chalup, Laura María IsabelIcon ; Robledo Dobladez, Germán ArielIcon ; Lavia, Graciela InésIcon
Otros responsables: Varshney, Rajeev K.; Pandey, Manish K.; Puppala, Naveen
Fecha de publicación: 2017
Editorial: Springer
ISBN: 978-3-319-63933-8
Idioma: Inglés
Clasificación temática:
Genética y Herencia

Resumen

The genus Arachis is composed of 82 species (Krapovickas and Gregory 1994; Valls and Simpson 2005; Valls et al 2013; Santana and Valls 2015) mainly distributed within a large region of South America, which extends from the eastern foothills of the Andes Mountains in Bolivia and northern Argentina to the Atlantic coast in Brazil, and from the southern limit of the Amazonian rainforest towards the northern coast of La Plata River in Uruguay. Based on morphology, cross-compatibility, viability of the hybrids, geographic distribution and cytogenetics, the Arachis species have been arranged in nine taxonomic sections: Trierectoides, Erectoides, Procumbentes, Rhizomatosae, Heteranthae, Caulorrhizae, Extranervosae, Triseminatae and Arachis (Krapovickas and Gregory 1994; Fernández and Krapovickas 1994; Lavia 1996; Valls and Simpson 2005). Cross compatibility, karyotypic and meiotic analysis also allowed the identification and description of six different genomes within the section Arachis: namely A, B, D, F, K and G (Smartt et al 1978; Stalker 1991; Robledo and Seijo 2008, 2010; Robledo et al 2009; Silvestri et al 2015). The genomic constitution of the remaining species of the genus, in the absence of comprehensive cytogenetic and molecular analysis, is less precise and have been traditionally assigned on the basis of the subgeneric divisions, that is: Am (Heteranthae), C (Caulorrhizae), E (Trierectoides, Erectoides and Procumbentes), Ex (Extranervosae), T (Triseminatae) and R (Rhizomatosae) (Smartt and Stalker 1982). Classical and modern molecular cytogenetics revealed a huge variability within and among species of different sections. These studies provided important information about the complexity of the peanut genome, and were very useful to unravel the taxonomy of the genus and to establish relationships among the wild species with the cultivated peanut. Here we present an update of the cytological information on Arachis species, and some examples in which the use of chromosome markers were decisive to understand critical and long lasting problems in the genus.
Palabras clave: genome , Arachis , FISH , heterochromatin
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/98498
DOI: http://dx.doi.org/10.1007/978-3-319-63935-2_4
URL: https://link.springer.com/chapter/10.1007%2F978-3-319-63935-2_4
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Capítulos de libros de INST.DE BOTANICA DEL NORDESTE (I)
Citación
Seijo, José Guillermo; Samoluk, Sergio Sebastián; Ortiz, Alejandra Marcela; Silvestri, María Celeste; Chalup, Laura María Isabel; et al.; Cytological features of penaut genome; Springer; 2017; 37-52
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