DISSERTATION RESEARCH: Systematics, Evolution, and Biogeography of Lepechinia (Lamiaceae)

论文研究：Lepechinia（唇形科）的系统学、进化和生物地理学

基本信息

批准号：
0910336
负责人：
Kenneth Sytsma
金额：
$ 1.42万
依托单位：
University of Wisconsin-Madison
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-06-01 至 2011-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0910336&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH Systematics Evolution Biogeography

项目摘要

Systematics, evolution, and biogeography of Lepechinia (Lamiaceae)AbstractThe mint family (Lamiaceae) is a group of flowering plants that is well known for providing herbs used in cooking and ornamentals used in gardening. Many wild species also colour the landscape of the U.S. In California, a group of mint species in the genus Lepechinia occur in the area known as the California Floristic Province, a region extending from Southern Oregon to Northern Baja. This project will use DNA sequences of Lepechinia and fossils to determine when the California Floristic Province originated. Additional DNA sequences will be used to determine how closely related Lepechinia is to other groups of mints. Finally, the DNA data will be used to assess how the morphology and breeding system of Lepechinia have changed during evolution. The California Floristic Province has many plant species that occur nowhere else in the world. Because of its high diversity and unique set of species, there has been considerable interest in understanding how long it has been in existence and how it formed. Lepechinia and its close relative Salvia (a familiar garden plant) can help to determine the age of the flora. Preliminary results of this study show that the California clades of Lepechinia and Salvia originated between 10 and 20 million years ago, probably from ancestors that lived farther to the south.

牛皮纸（Lamiaceae）的系统学，进化和生物地理学摘要The Mint家族（Lamiaceae）是一组开花植物，以在园艺中使用用于烹饪和装饰品的草药而闻名。许多野生物种也使美国在加利福尼亚州的景观上染色，该地区的一组薄荷物种发生在加利福尼亚植物省，该地区从俄勒冈州南部延伸到北巴哈北部。该项目将使用Lepechinia和化石的DNA序列来确定加利福尼亚植物省何时起源。其他DNA序列将用于确定鳞茎与其他薄荷群的紧密相关。最后，将使用DNA数据来评估鳞茎的形态和繁殖系统在进化过程中如何变化。加利福尼亚植物省拥有许多世界上其他任何植物物种。由于其高度多样性和独特的物种集，因此有很大的兴趣了解它已经存在了多长时间以及它的形成方式。 Lepechinia及其亲密的相对Salvia（一种熟悉的花园植物）可以帮助确定植物群的年龄。这项研究的初步结果表明，加利福尼亚的鳞茎和萨尔维亚进化枝起源于10到2000万年前，可能来自居住在南方的祖先。