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| Marinho,Anne C.T.A.; Vasconcelos,Santelmo; Vasconcelos,Emanuelle V.; Marques,Daniela A.; Benko-Iseppon,Ana Maria; Brasileiro-Vidal,Ana Christina. |
| Abstract Jatropha is an important genus of Euphorbiaceae, with species largely used for various purposes, including the manufacturing of soaps and pharmaceutical products and applications in the bioenergetic industry. Although there have been several studies focusing J. curcas in various aspects, the karyotype features of Jatropha species are poorly known. Therefore, we analyzed six Jatropha species through fluorochrome staining (CMA/DAPI), fluorescent in situ hybridization (FISH) with 5S and 45S rDNA probes and genome size estimation by flow cytometry. Our results revealed several chromosome markers by both CMA/DAPI and FISH for the analyzed species. Five Jatropha species (J. curcas, J. gossypiifolia, J. integerrima, J. multifida and J. podagrica) showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytotaxonomy; DNA C-value; Heterochromatin; Physic nut; RDNA. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000300442 |
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| Vasconcelos,Emanuelle V.; Brasileiro-Vidal,Ana C.; Benko-Iseppon,Ana M.; Vasconcelos,Santelmo. |
| ABSTRACT Aiming for a better understanding of karyotype evolution within Philodendron, we report chromosome counts for 23 species of the genus, of which 19 are being reported for the first time, thus increasing to 84 ( ca. 17 % of the genus) the total number of species with available chromosome counts. The diploid numbers 2 n = 32 and 2 n = 34 were the most common, with 10 and 11 species, respectively, whereas only two species presented different chromosome numbers ( P. giganteum with 2 n = 30 and P. adamantinum with 2 n = 36). The results are discussed in the context of previous analyses of karyotypes of Philodendron spp., taking into account bidirectional dysploidy as the main mechanism of chromosome number evolution within the genus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aroids; Diploid number; Dysploidy; Karyotype; Philodendron. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200309 |
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