Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/tax.603004 |
Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae) | |
Luebert, Federico1,2; Brokamp, Grischa1; Wen, Jun3; Weigend, Maximilian1; Hilger, Hartmut H.1 | |
通讯作者 | Luebert, Federico |
来源期刊 | TAXON
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ISSN | 0040-0262 |
EISSN | 1996-8175 |
出版年 | 2011 |
卷号 | 60期号:3页码:663-680 |
英文摘要 | Little is known about vegetative morphological diversification in Neotropical plant clades in comparison with diversification of reproductive characters. Phylogenetic relationships of the Neotropical Heliotropium (Heliotropiaceae) were studied using sequences of nrITS and four plastid regions (trnL-trnF, trnS-trnG, trnH-psbA, rps16). Vegetative morphological diversity (leaf morphology, habit), measured as amount of morphospace occupied and as variance of individual characters, was compared among the clades resolved and between groups of species inhabiting dry and humid areas. Three well-supported clades were recovered: (1) Heliotropium sect. Heliothamnus from the tropical Andes; (2)Heliotropium sect. Cochranea from the Peruvian and the Atacama Deserts; and (3) the Tournefortia clade, comprising the remaining American sections of Heliotropium and the mainly Neotropical Tournefortia sect. Tournefortia. Phylogenetic discordance detected between the plastid and nuclear partitions may have been due to lineage sorting, hybridization or differences in number of informative sites. Morphological diversity was largest in the Tournefortia clade and tended to be greater in dry than in humid areas, but without statistical support. Heliotropium sect. Cochranea was as diverse as the Tournefortia clade in leaf morphology and may have experienced adaptive radiation in the Atacama Desert. Lowest vegetative diversity was found in Heliotropium sect. Heliothamnus. The infrageneric delimitation in Heliotropium needs reassessment. |
英文关键词 | Andes Boraginaceae Boraginales Heliotropiaceae Heliotropium morphological diversity |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Chile ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000292070800004 |
WOS关键词 | DNA-SEQUENCES ; DIVERSIFICATION ; EVOLUTION ; CHLOROPLAST ; RATES ; BORAGINACEAE ; TOURNEFORTIA ; PATTERNS ; TREES ; AMPLIFICATION |
WOS类目 | Plant Sciences ; Evolutionary Biology |
WOS研究方向 | Plant Sciences ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/170675 |
作者单位 | 1.Free Univ Berlin, Inst Biol Bot, D-14195 Berlin, Germany; 2.Univ Chile, Fac Ciencias Forestales, Dept Silvicultura, Santiago, Chile; 3.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20013 USA |
推荐引用方式 GB/T 7714 | Luebert, Federico,Brokamp, Grischa,Wen, Jun,et al. Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae)[J],2011,60(3):663-680. |
APA | Luebert, Federico,Brokamp, Grischa,Wen, Jun,Weigend, Maximilian,&Hilger, Hartmut H..(2011).Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae).TAXON,60(3),663-680. |
MLA | Luebert, Federico,et al."Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae)".TAXON 60.3(2011):663-680. |
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