Instituto Multidisciplinario de Biología Vegetal (IMBIV), Universidad de Córdoba - CONICET, Córdoba, Argentina.
Laboratorio de Citogenética Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Brazil.
Methods Mol Biol. 2023;2703:211-225. doi: 10.1007/978-1-0716-3389-2_16.
Chromosome numbers have been used in plant taxonomy, and they are still fundamental for taxon delimitation and genome evolution studies. South America is one of the most diverse continents in terms of plant species and there is a considerable number of species not yet analyzed. Accumulated knowledge about plant chromosome numbers has been compiled from online databases, and here we present an overview. The CCDB is one of the largest plant cytological databases and includes data for around 18% of known vascular plants in the world. In this work, we review the information contained in CCDB and in three databases with exclusive information for South America. At present, the three existing databases comprise information on around 1800 plant taxa related to specific regions, countries, or biomes. Efforts are necessary to expand cytological knowledge and to collect all the available information in a plant chromosome database for this continent.
染色体数目在植物分类学中被广泛应用，对于分类群的界定和基因组进化研究仍然具有重要意义。从植物物种多样性来看，南美洲是最具多样性的大陆之一，仍有相当数量的物种尚未得到分析。有关植物染色体数目的知识积累主要来自在线数据库，本文对此进行了综述。CCD 是最大的植物细胞学数据库之一，包含了全球约 18%已知维管植物的数据。在这项工作中，我们对 CCDB 以及三个专门针对南美洲的数据库中的信息进行了综述。目前，这三个现有的数据库包含了与特定地区、国家或生物群相关的约 1800 个植物分类群的信息。为了扩展细胞学知识并在该大陆的植物染色体数据库中收集所有可用信息，需要付出努力。
