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dc.contributor.authorFELIX, W. J. P.pt_BR
dc.contributor.authorFELIX, L. P.pt_BR
dc.contributor.authorMELO, N. F. dept_BR
dc.contributor.authorOLIVEIRA, M. B. M.pt_BR
dc.contributor.authorDUTILH, J. H. A.pt_BR
dc.contributor.authorCARVALHO, R.pt_BR
dc.date.accessioned2011-07-20T11:11:11Zpt_BR
dc.date.accessioned2011-07-20T11:11:11Zpt_BR
dc.date.available2011-07-20T11:11:11Zpt_BR
dc.date.available2011-07-20T11:11:11Zpt_BR
dc.date.created2011-07-20pt_BR
dc.date.issued2011pt_BR
dc.identifier.citationPlant Systematics and Evolution, New York, v. 294, p. 263-271, 2011.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/896456pt_BR
dc.descriptionAbstract In this work, the cytotaxonomic implications of the chromosomal characterization of cultivated and native Zephyranthes species described in northeastern Brazil were studied. All individuals had karyotype formed by a set of metacentric chromosomes, in addition to submetacentric and acrocentric chromosomes. In Zephyranthes robusta, 2n = 12 was observed and karyotype with formula 4M ? 2SM in somatic cells, representing the most symmetric karyotype among the investigated species. Z. sylvatica showed three different chromosome complement numbers: 2n = 12 with formula 1M ? 5SM, 2n = 12 ? 1B with1M ? 5SM ? (1B), and 2n = 18 formed by cracks. The cultivated species Z. rosea Lindl. presented 2n = 24 with 4M ? 7SM ? 1A, however Z. grandiflora Lindl. showed the same chromosome number with 2M ? 5SM ? 5A. Zephyranthes aff. rosea Lindl. presented 2n = 25 with one small metacentric forming a crack in the fourth metacentric pair. Z. brachyandra has 2n = 24 ? (1B) and formula 4M ? 3SM ? 5A ? (1B). Z. candida Herb. presented 2n = 38 and karyotype formula 9M ? 10SM. In Habranthus itaobinus numerical variation was observed, with the majority of populations showing a chromosome complement composed of 2n = 44 ? 1B with 5M ? 12SM ? 5A ? (1B), or 2n = 44 ? 3B in a single population. Mechanisms involved in the formation of these karyotypes from chromosomal imbalance data are discussed. Taken together, data from this study only partially confirm previous counts for epithets and further enhance the cytological variability data previously reported for the genus.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectLirio-da-caatingapt_BR
dc.subjectCromossomopt_BR
dc.subjectHabranthus itaobinuspt_BR
dc.subjectMelhoramento genéticopt_BR
dc.subjectKaryotype asymmetrypt_BR
dc.titleKaryotype variability in species of the genus Zephyranthes Herb. (Amaryllidaceae-Hippeastreae).pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-11-18T11:11:11Zpt_BR
dc.subject.thesagroCromossomapt_BR
dc.subject.nalthesaurusZephyranthespt_BR
dc.subject.nalthesaurusChromosomespt_BR
riaa.ainfo.id896456pt_BR
riaa.ainfo.lastupdate2011-11-18pt_BR
dc.identifier.doi10.1007/s00606-011-0467-6pt_BR
dc.contributor.institutionW. J. P. FELIX, Mestrando da UFRPE; L. P. FELIX, UFPB; NATONIEL FRANKLIN DE MELO, CPATSA; M. B. M. OLIVEIRA, UFPE; J. H. A. DUTILH, UNICAMP; R. CARVALHO, UFRPE.pt_BR
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