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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
28/01/2019 |
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Autoria: |
SCHANK, S. C.; KNOWLES, P. F. |
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Título: |
Cytogenetics of Cartamus species (Compositae) with ten pairs of chromosomes. |
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Ano de publicação: |
1964 |
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Fonte/Imprenta: |
American Journal of Botany, v. 51, n. 10, p. 1093-1102, 1964. |
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DOI: |
DOI: 10.2307/2439957 |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Cartamo. |
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Thesagro: |
Citogenética; Hibridação; Taxonomia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01745naa a2200193 a 4500
001 1833198
005 2019-01-28
008 1964 bl --- 0-- u #d
024 7 $aDOI: 10.2307/2439957$2DOI
100 1 $aSCHANK, S. C.
245 $aCytogenetics of Cartamus species (Compositae) with ten pairs of chromosomes.
260 $c1964
520 $aPlants 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.
650 $aCitogenética
650 $aHibridação
650 $aTaxonomia
653 $aCartamo
700 1 $aKNOWLES, P. F.
773 $tAmerican Journal of Botany$gv. 51, n. 10, p. 1093-1102, 1964.
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Registro original: |
Embrapa Trigo (CNPT) |
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