A cyber monograph and phylogeny of the papaya family, Caricaceae: Providing the context for the fully sequenced genome of a worldwide crop

番木瓜科（Caricaceae）是一个由35种植物组成的科，目前隶属于6个属。33种分布于中美洲和南美洲，2种分布于非洲。生长形式从小型草本植物到高大的树木，物种在广泛的栖息地发生。这一建议产生的分子遗传学包括大多数的35个物种，和番木瓜的姐妹组，辣木科，已经很好地了解遗传学。在这里，我们建议（i）用额外的DNA基因座加强物种水平的同源性，（ii）测试我们意想不到的发现，即番木瓜是四个草本物种的墨西哥分支的姐妹，以及（iii）完成该家族的网络专著，即，一个系统的处理，将充分利用数据库和工具，在计算机和信息时代。人们不断强调加快和免费提供系统成果的重要性，但利用现有众多电子工具和数据库的专题工作却很少。这是由于专题系统研究所需的专门知识受到侵蚀。番木瓜科非常适合作为一个网络专著，因为V. Badillo（1920-2008），直到最近的世界专家在该科奠定了命名和分类基础。该项目的一个重要成果将是一个系统发育框架，用于解释完整的番木瓜基因组和番木瓜科性染色体的进化。

Caricaceae are a family of 35 species in currently six genera. Thirty-three species occur in Central and South America, two in Africa. Growth forms range from small herbs to tall trees, and the species occur in a wide range of habitats. A molecular phylogeny generated for this proposal includes most of the 35 species, and the Caricaceae sister group, the Moringaceae, is already well understood phylogenetically. Here we propose to (i) strengthen the species-level phylogeny with additional DNA loci, (ii) test our unexpected discovery that Carica papaya is sister to a Mexican clade of four herbaceous species, and (iii) complete a cyber monograph of the family, i.e., a systematic treatment that will take full advantage of databases and tools available in the computer and information age. The importance of speeding up and making freely accessible systematic results is constantly being stressed, yet there is a dearth of monographic work using the numerous e-tools and databases now in existence. This is due to an erosion of the expertise required for monographic systematic research. Caricaceae are well suited for a cyber monograph because of the nomenclatural and taxonomic basis laid by V. Badillo (1920-2008), the World expert on the family until recently. An important outcome of this project will be a phylogenetic framework for interpreting the complete papaya genome and the evolution of sex chromosomes in the Caricaceae.