語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Biogeography and systematics of Ouri...
~
Meudt, Heidi Marie.
FindBook
Google Book
Amazon
博客來
Biogeography and systematics of Ourisia (Plantaginaceae).
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Biogeography and systematics of Ourisia (Plantaginaceae)./
作者:
Meudt, Heidi Marie.
面頁冊數:
493 p.
附註:
Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3811.
Contained By:
Dissertation Abstracts International65-08B.
標題:
Biology, Botany. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3145340
ISBN:
0496033840
Biogeography and systematics of Ourisia (Plantaginaceae).
Meudt, Heidi Marie.
Biogeography and systematics of Ourisia (Plantaginaceae).
- 493 p.
Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3811.
Thesis (Ph.D.)--The University of Texas at Austin, 2004.
This dissertation examines the biogeography, taxonomy, species relationships, and morphological evolution of the genus Ourisia (Plantaginaceae; Scrophulariaceae s.l.) Ourisia is distributed in subalpine to alpine habitats of South America, New Zealand, and Tasmania. This classic austral biogeographic pattern displayed by numerous extant plants and animals has been attributed to either Gondwanan vicariance or long-distance dispersal. To test these hypotheses for Ourisia, a molecular phylogenetic approach was used to reconstruct the evolutionary history of most species of Ourisia based on two chloroplast and two nuclear DNA markers using parsimony and Bayesian methods. Parametric bootstrapping rejected both the Gondwana biogeographic hypothesis and an Australasian origin for the genus. Instead, Ourisia likely arose in the southern Andes, and subsequently spread to the north-central Andes and to New Zealand and Tasmania via long-distance dispersal. These results corroborate other recent molecular phylogenetic studies that have highlighted the important role of dispersal in the evolutionary history of many other high-elevation plants in the Southern Hemisphere. The molecular phylogeny also elucidated interesting biogeographic trends within both South America and New Zealand, which are discussed in light of the geological history of each region. A detailed morphological study of herbarium specimens resulted in the first comprehensive monograph of Ourisia. Twenty-seven total species were recognized from South America (15), Tasmania (1), and New Zealand (11). A new infrageneric classification for Ourisia was proposed based on habit. The three suffruticose southern Andean species comprise subg. Dichroma , while the remaining 24 herbaceous species make up subg. Ourisia. This infrageneric classification contrasts with that of Poeppig and Endlicher, who delimited the two subgenera within Ourisia based largely on calyx symmetry. Separate and combined phylogenetic analyses of 21 morphological characters in addition to the molecular data for 29 of the 33 species and varieties of Ourisia plus the outgroup supported the monophyly and sister relationship of the herbaceous and suffruticose subgenera. Six other morphological characters, including leaf attachment, presence of an inflated hypogynous disc, seed type, ovary vestiture, (internal) calyx vestiture, and inflorescence structure, also support this circumscription. Evolution of these and other characters, in addition to species relationships, were also addressed.
ISBN: 0496033840Subjects--Topical Terms:
1017825
Biology, Botany.
Biogeography and systematics of Ourisia (Plantaginaceae).
LDR
:03429nmm 2200277 4500
001
1843497
005
20051010101004.5
008
130614s2004 eng d
020
$a
0496033840
035
$a
(UnM)AAI3145340
035
$a
AAI3145340
040
$a
UnM
$c
UnM
100
1
$a
Meudt, Heidi Marie.
$3
1931726
245
1 0
$a
Biogeography and systematics of Ourisia (Plantaginaceae).
300
$a
493 p.
500
$a
Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3811.
500
$a
Supervisor: Beryl B. Simpson.
502
$a
Thesis (Ph.D.)--The University of Texas at Austin, 2004.
520
$a
This dissertation examines the biogeography, taxonomy, species relationships, and morphological evolution of the genus Ourisia (Plantaginaceae; Scrophulariaceae s.l.) Ourisia is distributed in subalpine to alpine habitats of South America, New Zealand, and Tasmania. This classic austral biogeographic pattern displayed by numerous extant plants and animals has been attributed to either Gondwanan vicariance or long-distance dispersal. To test these hypotheses for Ourisia, a molecular phylogenetic approach was used to reconstruct the evolutionary history of most species of Ourisia based on two chloroplast and two nuclear DNA markers using parsimony and Bayesian methods. Parametric bootstrapping rejected both the Gondwana biogeographic hypothesis and an Australasian origin for the genus. Instead, Ourisia likely arose in the southern Andes, and subsequently spread to the north-central Andes and to New Zealand and Tasmania via long-distance dispersal. These results corroborate other recent molecular phylogenetic studies that have highlighted the important role of dispersal in the evolutionary history of many other high-elevation plants in the Southern Hemisphere. The molecular phylogeny also elucidated interesting biogeographic trends within both South America and New Zealand, which are discussed in light of the geological history of each region. A detailed morphological study of herbarium specimens resulted in the first comprehensive monograph of Ourisia. Twenty-seven total species were recognized from South America (15), Tasmania (1), and New Zealand (11). A new infrageneric classification for Ourisia was proposed based on habit. The three suffruticose southern Andean species comprise subg. Dichroma , while the remaining 24 herbaceous species make up subg. Ourisia. This infrageneric classification contrasts with that of Poeppig and Endlicher, who delimited the two subgenera within Ourisia based largely on calyx symmetry. Separate and combined phylogenetic analyses of 21 morphological characters in addition to the molecular data for 29 of the 33 species and varieties of Ourisia plus the outgroup supported the monophyly and sister relationship of the herbaceous and suffruticose subgenera. Six other morphological characters, including leaf attachment, presence of an inflated hypogynous disc, seed type, ovary vestiture, (internal) calyx vestiture, and inflorescence structure, also support this circumscription. Evolution of these and other characters, in addition to species relationships, were also addressed.
590
$a
School code: 0227.
650
4
$a
Biology, Botany.
$3
1017825
650
4
$a
Biology, Genetics.
$3
1017730
690
$a
0309
690
$a
0369
710
2 0
$a
The University of Texas at Austin.
$3
718984
773
0
$t
Dissertation Abstracts International
$g
65-08B.
790
1 0
$a
Simpson, Beryl B.,
$e
advisor
790
$a
0227
791
$a
Ph.D.
792
$a
2004
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3145340
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9193011
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入