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

[407350 Kron]蓝莓或石南科（Ericaceae）是一个非常多样化的园艺和农业重要植物群。它具有广泛的地理分布，横跨世界的温带和热带地区。在整个开花植物中看到的许多多样性模式可以在蓝莓家族中单独看到。例如，虽然这个科的大多数成员是木本灌木和乔木，但也有一些是草本植物；大多数成员是绿色和光合作用的，但有几个缺乏叶绿素，本质上是寄生的；许多是昆虫传粉的，但有些是风传粉或鸟类传粉的。这种多样性提出了有关家庭成员之间关系的问题。利用形态学和DNA序列数据，维克森林大学的Kathleen Kron博士将对Ericaceae物种的系统发育关系进行评估。DNA数据正在从叶绿体和核源收集，并将反过来与这些植物的传统分类中使用的形态特征相结合。确定该科的系统发育或系谱分组将为今后在生物地理学、真菌寄主/寄生虫特异性和传粉生物学等领域的研究提供框架，并为属和种水平的详细分类研究提供参考数据。

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.