Phylogenetic Relationships in the Ericaceae s.1: Combined Evidence From Morphology and DNA Sequences of Two Chloroplast Genes and One Nuclear Ribosomal Gene

9407350克朗，蓝莓或石南科(杜鹃科)是一类非常多样化的园艺和农业重要植物。它的地理分布广泛，横跨世界温带和热带地区。在整个开花植物中看到的许多多样性模式仅在蓝莓家族中就可以看到。例如，虽然该科的大多数成员是木本灌木和乔木，但有几种是草本植物；大多数成员是绿色和光合作用的，但有几种成员缺乏叶绿素，基本上是寄生的；许多是昆虫授粉的，但也有一些是风授粉或由鸟类授粉的。这种多样性提出了关于家庭成员之间关系的问题。利用形态和DNA序列数据，维克森林大学的凯瑟琳·克伦博士将对杜鹃花科物种的系统发育关系进行评估。DNA数据是从叶绿体和核来源收集的，并将与这些植物的传统分类学中使用的形态特征相结合。该科内系统发育或谱系分类的确定将为今后在生物地理学、真菌寄主/寄生虫专一性和传粉生物学等领域的研究提供一个框架，并为在属和种水平上进行详细的分类学研究提供参考数据。

9407350 Kron The blueberry or heath family (Ericaceae) is a remarkably diverse group of horticulturally and agriculturally important plants. It has a broad geographic distribution that spans both the temperate and tropical regions of the world. Many of the patterns of diversity seen throughout the flowering plants as a whole can be seen within the blueberry family alone. For example, whereas most of the members of the family are woody shrubs and trees, several are herbs; most members are green and photosynthetic, but several lack chlorophyll and are essentially parasitic; many are insect pollinated but some are wind pollinated or pollinated by birds. This diversity presents questions about the relationships among the members of the family. Using both morphology and DNA sequence data, Dr. Kathleen Kron of Wake Forest University will provide an assessment of the phylogenetic relationships of species of Ericaceae. DNA data are being collected from both chloroplast and nuclear sources, and will in turn be integrated with morphological characters used in traditional taxonomies of these plants. The determination of phylogenetic or genealogical groupings within the family will provide a framework for future studies in such areas as biogeography, fungal host/parasite specificity, and pollination biology, as well as provide reference data for detailed taxonomic studies at genus and species levels.