Data/hora: 10/06/2024 16:37:13

Biblioteca(s): | Embrapa Trigo.
Data corrente: | 10/01/2010
Data da última atualização: | 28/01/2019
Autoria: | SCHANK, S. C.; KNOWLES, P. F.
Título: | Cytogenetics of Cartamus species (Compositae) with ten pairs of chromosomes.
Ano de publicação: | 1964
Fonte/Imprenta: | American Journal of Botany, v. 51, n. 10, p. 1093-1102, 1964.
DOI: | DOI: 10.2307/2439957
Idioma: | Inglês
Conteúdo: | Plants thought to be typical of 7 species were chosen to represent the various taxa of Carthamus species with 10 pairs of chromosomes. These entities were crossed in all possible combinations and 20 of the possible 21 interspecific hybrids were obtained after 3 seasons of crosses. Analyses of the hybrids included studies of microsporocytes, pollen stainability, achene fertility, rudimentary ovaries, and other morphological characteristics. Pairing of chromosomes at metaphase I indicated no translocations were present in hybrids between C. tenuis from Israel, C. alexandrinus from Egypt, C. glaucus from northern Israel, and C. syriacus from Jordan. Members of this group are assigned the standard arrangement. Hybrids of C. glaucus from Iran, C. glaucus from Syria, and C. dentatus from Turkey always showed a translocation or chromosomal interchange when crossed with any member having the "standard" arrangement. The last 3 species are considered to have the "non-standard" chromosomal arrangement. The parental species used in this study can be regarded as a set of testers which will allow identification of chromosomal differentiation in additional Carthamus materials as they are collected.
Palavras-Chave: | Cartamo.
Thesagro: | Citogenética; Hibridação; Taxonomia.
Categoria do assunto: | --
Registro original: | Embrapa Trigo (CNPT)
Exemplares: | CNPT - (21396-1) - ADD - SP - -- - 07477 -  - 07477 - DIS