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Title: | Indentificación de los cromosomas de trigo del triticale "Cachirulo" por homologia con los de Triticum aestivum |
Authors: | Naranjo, T. | Keywords: | Triticale Cachirulo Trigo Apareamiento homólogo Bandeo-C |
Issue Date: | 1988 | Publisher: | CSIC - Estación Experimental de Aula Dei (EEAD) | Citation: | An. Estac. Exp. Aula Dei, v. 19 (1988), n. 1/2: 55-62. | Abstract: | [EN] The C-banding pattern of Triticum durum chromosomes that are present in hexaploid tricicale "Cachirulo" (AABBRR) was established. These chromosomes were identified by pairing with T. aestivum chromosomes in triticale "Cachirulo" x T. aestivum cv. "Chinese Spring" hybrids (AABBDR). In such hybrids, pairing was almost restricted to homologues. Chromosomes 2A, 6A, 7A, 2B, 3B, 5B, 6B, and 7B, showed variation between "Cachirulo" and "Chinese Spring" in the amount and distribution of C-heterochromatin. A random distribution of centromeres of chromosome pairs 2A, 6A, 3B, 5B and 6B was observed at metaphase I in AABBDR hybrids. [ES] Se ha establecido el patrón de bandeo-C de los cromosomas de triticum durum presentes en el triticale hexaploide "Cachirulo". Estos cromosomas se identificaron por apareamiento con los de T. aestivum en híbridos AABBDR entre triticale "Cachirulo" y T. aestivum cv. "Chinese Spring". En estos híbridos, el apareamiento quedaba casi exclusivamente restringido a los homólogos. Los cromosomas 2A, 6A, 7A, 2B, 3B, 5B, 6B y 7B presentan variación entre "Cachirulo" y "Chinese Spring" en le contenido y distribución de la heterocromatina. La orientación de los centrómeros de los pares de cromosomas 2A, 6A, 3B, 5B y 6B en metafase I de los híbridos AABBDR era al azar. |
URI: | http://hdl.handle.net/10261/12965 | ISBN: | 0365-1800 |
Appears in Collections: | (EEAD) Artículos |
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ANALES_19_1-2-Identificacion de los cromosomas.pdf | 354,99 kB | Adobe PDF | ![]() View/Open |
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