Karyotype analysis in Bignonieae (Bignoniaceae): chromosome numbers and heterochromatin
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چکیده
منابع مشابه
Taxonomic updates in Dolichandra Cham. (Bignonieae, Bignoniaceae)
Dolichandra is a genus of lianas found in dry and wet Neotropical forests. The genus currently includes eight species and is well characterized by molecular and morphological synapomorphies. Here, Macfadyenahispida (DC.) Seemann is removed from synonomy with Dolichandrauncata (Andrews) L.G. Lohmann based on the presence of the hispid indument, vinaceus ovary, long fruits, and winged seeds. The ...
متن کاملTaxonomic revision of Pachyptera (Bignonieae, Bignoniaceae)
Pachyptera DC. is a small genus of neotropical lianas included in tribe Bignonieae (Bignoniaceae). The genus has a complicated taxonomic history but currently includes species distributed from Belize to Southern Amazon. Pachyptera is characterised by four main synapomorphies, namely, a papery peeling bark, prophylls of the axillary buds organised in a series of three, patelliform glands arrange...
متن کاملPrimers for phylogeny reconstruction in Bignonieae (Bignoniaceae) using herbarium samples1
UNLABELLED PREMISE OF THE STUDY New primers were developed for Bignonieae to enable phylogenetic studies within this clade using herbarium samples. • METHODS AND RESULTS Internal primers were designed based on available sequences of the plastid ndhF gene and the rpl32-trnL intergenic spacer region, and the nuclear gene PepC. The resulting primers were used to amplify DNA extracted from her...
متن کاملTwo new species of Tynanthus Miers (Bignonieae, Bignoniaceae) from Brazil
Tynanthus is a genus of lianas that is broadly distributed through the Neotropics. Two new species of Tynanthus from Brazil are here described and illustrated: Tynanthusdensiflorus, from Amazonas, and Tynanthusespiritosantensis, from Espírito Santo. Tynanthusdensiflorus is recognized by the conspicuous interpetiolar glandular fields, a feature rarely found in Tynanthus, and the dense thyrses. T...
متن کاملKaryotype Analysis and Chromosome Banding
Nearly all methods of chromosome banding rely on harvesting chromosomes in mitosis. This is usually achieved by treating cells with tubulin inhibitors, such as colchicine or demecolcine (colcemid), that depolymerize the mitotic spindle and so arrest the cell at this stage. Excessively long incubations with Colcemid result in overcondensed chromosomes that band poorly and moreover some cell type...
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ژورنال
عنوان ژورنال: Anais da Academia Brasileira de Ciências
سال: 2017
ISSN: 1678-2690,0001-3765
DOI: 10.1590/0001-3765201720170363