Abstract：
Chromosome numbers and information on ploidy level are of great importance for better understanding of plant evolution and taxonomy but also for species identification. Technical developments in flow cytometry dramatically improved the measurement of genome size and triggered a renewed interest in chromosome numbers. Web-based portals make these kind of data accessible for a wide audience in both academia and citizen science. The specialised database of German plant chromosome counts and ploidy estimates comprises to date more than 14,000 records covering 52% of the German taxa. The database is accessed about 70 times per month and became an integral part of several more comprehensive initiatives. One example is the Rothmaler Flora of Germany, which now for the first time features chromosome data with verified origin from the region of interest. Another is the German plant information hub FloraWeb currently amended by several new data sources with the chromosome number database as a major component.
摘要：
染色体数量和倍性水平的信息对于更好地理解植物进化和分类学以及物种鉴定非常重要。流式细胞术的技术发展极大地改善了基因组大小的测量，并引发了对染色体数量的新兴趣。基于Web的门户使学术界和公民科学的广泛受众都可以访问这些数据。迄今为止，德国植物染色体计数和倍性估计的专门数据库包含超过14,000条记录，涵盖了52％的德国分类群。该数据库每月被访问约70次，并成为若干更全面举措的组成部分。一个例子是德国的罗斯马勒植物区系，它现在首次以染色体数据为特征，验证了来自感兴趣区域的来源。另一个是德国植物信息中心FloraWeb，目前已通过几个新的数据源进行了修改，其中染色体编号数据库是主要组成部分。
