REVSYS: Phylogeny and Revision of Artocarpus (Moraceae) with a Focus on Understanding the Origins and Diversity of Cultivated Members of the Genus

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该项目将研究东南太平洋地区经济上重要的工厂群的分布和演变。 木菠萝属是桑科植物中的第三大属，包括无花果和桑葚。 最大数量的物种分布在东南亚的太平洋岛屿上。木菠萝包含许多经济上重要的物种，在其原产地种植用于木材或水果。菠萝蜜和面包果这两个品种在整个热带地区都有种植，它们正受到基因侵蚀的威胁，这可能使它们更容易受到疾病或干旱等环境压力的影响。菠萝蜜属植物种间的亲缘关系以及菠萝蜜和面包树品种间的遗传多样性尚不完全清楚。这些信息对于解释该属的进化和分布以及确定栽培物种的最近野生亲缘关系是必要的。然后，野生亲缘植物以及遗传多样性品种可以作为农场和种质资源收集的保护目标。这项资助的研究将结合联合收割机实地考察，形态评估和遗传研究，以产生一个全面的修订（可在硬拷贝和在线）的Artocarpus，描述其生态，进化和分布，并包括识别关键和有关的起源和遗传多样性的菠萝蜜和面包果的信息。这些结果将达到广泛的受众，是一个重要的属，在整个热带和亚热带的大部分地区的经济和生存价值的进化的理解作出了重大贡献。这项工作将涉及与国际科学家的合作，并将加强对美国和国外本科生和研究生的培训。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This project will study the distribution and evolution of an economically important group of plants in the southeast Pacific region. Artocarpus is the third largest genus in the plant family that contains figs and mulberries (Moraceae). The greatest number of species are distributed from Southeast Asia throughout islands in the Pacific Ocean. Artocarpus contains numerous economically important species that are grown in their native region for timber or fruit. Two species, jackfruit and breadfruit, are cultivated throughout the tropics and are under threat of genetic erosion that can leave them more susceptible to environmental stresses such as disease or droughts. The relationships among Artocarpus species and the genetic diversity within jackfruit and breadfruit cultivars are incompletely understood. Such information is necessary for explaining the evolution and distribution of the genus and identifying the closest wild relatives of cultivated species. Wild relatives as well as genetically diverse cultivars can then be targeted for conservation on-farm and in germplasm collections. The research funded by this grant will combine fieldwork, morphological assessments, and genetic studies to produce a comprehensive revision (available in hard copy and online) of Artocarpus, describing its ecology, evolution and distribution, and including identification keys and information about the origins and genetic diversity of jackfruit and breadfruit. The results will reach a broad audience and be a significant contribution to the understanding of the evolution of an important genus with economic and subsistence value throughout large parts of the tropics and subtropics. The work will involve collaboration with international scientists and will enhance the training of undergraduate and graduate students in the US and abroad.