| The phylogenetic significance of the carpophore in Apiaceae. | |
| | |
MedLine Citation:
|
PMID: 22966116 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Background and aimsFruit structural characters have traditionally been important in the taxonomy of the family Apiaceae. Previous investigations using a limited number of taxa have shown that the carpophore may be especially useful in helping to circumscribe subfamily Azorelloideae. The present study examines, for the first time, carpophore structure in 92 species from 43 genera, representing all subfamilies of Apiaceae, and including all genera assigned to subfamily Azorelloideae. Phylogenetic interpretations are made for the first time, using all available information, and a standard terminology is proposed to describe the various character states found in carpophores.MethodsCarpophore structure was studied in detail using light microscopy.Key ResultsCarpophores, when present, may be categorized into two main groups (B and C) based mainly on the arrangement of the vascular bundles in transverse section, and further divided into six sub-types according to the length of the carpophore (short in B1 and C1) and whether they are entire (B1-B3 and C1) or bifurcate (B4 and C2). Free carpophores are absent in subfamily Mackinlayoideae, and in tribes Lichtensteinieae and Phlyctidocarpeae, which have two opposite vascular bundles (Group A). Entire carpophores with one or two vascular bundles, or bifurcate carpophores with lateral vascular bundles (arranged side by side within the commissural plane), are the main types characterizing Azorelloideae. The short, hygroscopic carpophores found in Choritaenia are unique in Apiaceae and provide additional evidence for the exclusion of this genus from Azorelloideae. Carpophore type C2 is typical for most Apioideae sensu lato (exceptions are, for example, Arctopus and Alepidea, which have type B2).ConclusionsA single carpophore and ventral vascular bundles not forming free carpophores are proposed to be the ancestral conditions in Apiaceae, while bifurcate carpophores with opposite vascular bundles are the derived state, present in most Apioideae. Secondary reductions seem to have occurred in several unrelated lineages in all major groups, e.g. many Azorelloideae, several protoapioids (including nearly all members of the tribe Saniculeae) and 29 euapioid genera (e.g. some Oenantheae). |
| | |
Authors:
|
Mei Liu; Gregory M Plunkett; Ben-Erik Van Wyk; Patricia M Tilney; Porter P Lowry |
Related Documents
:
|
11462986 - Calculation of the hydrophobicity of platinum drugs. 16098576 - A modeling study of alphab-crystallin in complex with zinc for seeking of correlations ... 16889226 - Exploiting qsar methods in lead optimization. 19343586 - Identification of potential influenza virus endonuclease inhibitors through virtual scr... 8848356 - A structure-from-motion scheme that looks for parallels, and its implications for appar... 22045006 - Srs-schwab adult spinal deformity classification: a validation study. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-9-10 |
Journal Detail:
|
Title: Annals of botany Volume: - ISSN: 1095-8290 ISO Abbreviation: Ann. Bot. Publication Date: 2012 Sep |
Date Detail:
|
Created Date: 2012-9-11 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0372347 Medline TA: Ann Bot Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Biology, Harbin Normal University, 50 Hexing Road, Harbin 150080, PR China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Pay-for-performance in the United Kingdom: impact of the quality and outcomes framework: a systemati...
Next Document: Genetic relatedness of infecting and reinfecting respiratory syncytial virus strains identified in a...