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Topic: Asteridae


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In the News (Sun 20 Dec 09)

  
 [No title]
Magnoliopsida Asteridae Gentianales APOCYNACEAE Lacmellea edulis 22 18 APOCYNAC Lacmelle edulis LEDU Mammals NTAmerica Berry2.
Magnoliopsida Asteridae Gentianales APOCYNACEAE Lacmellea panamensis 3 46 APOCYNAC Lacmelle panamens LPAN Mammals NTAmerica Berry2.
0.307 Magnoliopsida Asteridae Gentianales APOCYNACEAE Rauvolfia tetraphylla 38 49 APOCYNAC Rauvolfi tetraphy RTET Mammals NTAmerica Berry2 7.3 8.4 0.315 0.03 0.041 1.9 0.021 9.7.
ebd10.ebd.csic.es /mywork/frubase/mac/FRUBASE.dat   (14786 words)

  
 ASTERIDAE   (Site not responding. Last check: 2007-10-21)
Chemically, iridoids are frequent, with the exception of the Asteraceae
The Asteridae is the most advanced class of dicots.
"Rise of the Asteridae is closely correlated with evolution of insects capable of recognizing complex floral patterns" - A. Cronquist.
www.csdl.tamu.edu /FLORA/201Manhart/Dicots/Asteridae/Asteridae.html   (95 words)

  
 Botanik online: Asteridae
Sie ist mit der der Asteridae nahezu deckungsgleich, wenngleich von ihnen einige nicht besonders artenreiche Ordnungen abgetrennt werden mußten: Diapensiales, Ericales, Ebenales, Primulales, Plumbaginales und Cucurbitales.
Der evolutionäre Fortschritt der Asteridae wäre demnach in einer Kombination bereits vorhandener Merkmale (bzw.
Asteridae: Ein phylogenetisches Schema zur Darstellung der Beziehungen zwischen den einzelnen Ordnungen (Nach A. Den Asteridae gehören 60 000 Arten in 11 Ordnungen und 49 Familien an.
www.biologie.uni-hamburg.de /b-online/d52/52.htm   (865 words)

  
  Asteridae --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-21)
The Asteridae, one of the six subclasses in the class Magnoliopsida (dicotyledons), consists of 11 orders, 49 families, and nearly 60,000 species.
That is to say, if investigators had the common ancestor of the Asteridae (or its immediate predecessor) at hand, they would probably refer it to the Rosales.
It is unusual in the Asteridae in that the flowers are nearly without a perianth.
www.britannica.com /eb/article-9111105?tocId=9111105   (356 words)

  
 Asteridae   (Site not responding. Last check: 2007-10-21)
The vast majority of the Asteridae have sympetalous flowers, in which the stamens are isomerous and alternate with the corolla lobes, or fewer than the corolla-lobes, and ovules with a single integument layer.
Chemically the Asteridae are noted for the frequent occurrence of iridoid compounds.
The Asteridae are sister to or derived from within the Rosidae.
botit.botany.wisc.edu /courses/systematics/Phyla/Magnoliophyta/Asteridae.html   (177 words)

  
 ASTERIDAE INFO AND TIPS   (Site not responding. Last check: 2007-10-21)
''Asteridae'' is a botanical name at the rank of subclass.
To a large extent Cronquist's subclass Asteridae corresponds with the older concepts of ''Sympetalae'' and ''Tubiflorae'', groups that were defined by having their petals united into a tube.
The circumscription of subclass Asteridae, as well as the circumscriptions of the orders contained within it, is currently in a state of flux; many systematic botanists refer to these as clades (asterids, euasterids, etc., rather than use formal names such as subclass Asteridae.
www.ihabits.com /Asteridae   (306 words)

  
 B201 - 12th lecture   (Site not responding. Last check: 2007-10-21)
Elements of the Asteridae are well marked by the presence of sympetaly and distinguished from sympetalous Dilleniidae by an androecium with stamens either equal to or less than the number of corolla lobes and positioned between the corolla lobes.
The Asteridae are the most advanced subclass of dicotyledons, and possibly the most recently evolved (only the Caryophyllidae may be more recent).
It seems likely that the rise of the Asteridae is closely correlated with the evolution of insects capable of recognizing complex floral patterns.
www.csdl.tamu.edu /FLORA/Wilson/tfp/ast/tfplecasts01.htm   (236 words)

  
 PBIO 250 Lecture Notes - Selected Families of Angiosperms: Asteridae - Spring 1999
Although nearly the same size as Rosidae in terms of species, as defined by Cronquist, the Asteridae is exceeded by the Rosidae and Dillenidae in terms of families.
Most have sympetalous flowers and epipetalous stamens that alternate with and are the same number or fewer than the corolla lobes.
There is growing evidence that this family is not a member of the Asteridae but rather should be assigned to the Dilleniidae and positioned near the Fouquieriaceae DC.
www.biologie.uni-hamburg.de /b-online/ibc99/reveal/aste.html   (2289 words)

  
 UW--Department of Biology
The group of plants that comprise the primary research emphasis is the subclass Asteridae, which are common in both temperate and tropical ecosystems and contain many economically important plant families, such as the mint family, Lamiaceae, and tomato/potato family, Solanaceae.
In addition, the lab is actively involved with research on the overall phylogeny of green plants, from their roots in the green algae to the tips of flowering plants.
Utility of 17 chloroplast genes for inferring the phylogeny of the basal angiosperms.
protist.biology.washington.edu /bio2/people/bio.html?parecID=273   (632 words)

  
 ARS | Publication request: Evolution of the Tcp Gene Family in Asteridae: Cladistic and Network Approaches to ...
Evolution of the TCP gene family in Asteridae: cladistic and network approaches to understanding regulatory gene family diversification and its impact on morphological evolution.
Cladistic and network-based analyses were performed to establish viable hypotheses regarding the evolution of bilateral symmetry in Asteridae.
For the TCP gene family, the use of cladistic phylogenetic analysis to identify orthologous genes is complicated by a paucity of alignable data, frequent gene duplication and extinction, and the possibility of reticulate evolution via intergenic recombination.
www.ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=156028   (566 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Title : Molecular Systematics of the Asteridae Abstract : Dr. Jeffrey Palmer and colleagues at the University of Michigan are studying evolutionary relationships among flowering plants at two distinct taxonomic levels.
At one level, they plan to investigate relationships among the 50 or so families that comprise the subclass Asteridae, the second largest subclass of dicots.
Although Asteridae are generally considered to be the most highly advanced and recently evolved of dicots subclasses, outstanding questions and controversies remain concerning the relative placement and relationships of most of the families in this group.
www.cs.utexas.edu /users/yguan/NSFAbstracts/Abstracts/BIO/DEB.BIO.a8717600.txt   (295 words)

  
 ARS | Publication request: Evolution of the Tcp Gene Family in Asteridae: Cladistic and Network Approaches to ...
Technical Abstract: In the plant subclass Asteridae, bilaterally symmetrical flowers have evolved from a radially symmetrical ancestral phenotype on at least three independent occasions: in the Boraginaceae, Solanaceae, and Lamiales.
Development of bilateral flower symmetry has been shown to be determined by the early acting cycloidea (cyc) and dichotoma (dich) genes in Antirrhinum, a member of the Lamiales.
TCP gene sequences were isolated from 11 Asteridae taxa using an array of degenerate PCR primers.
www.ars.usda.gov /research/publications/Publications.htm?seq_no_115=156028   (566 words)

  
 Rubiales (from Asteridae) --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-21)
The order Rubiales consists of the large family Rubiaceae and the small, highly modified family Theligonaceae.
The Rubiaceae are Asteridae with opposite leaves and interpetiolar stipules (stipules borne at the nodes on the stem between the leaves), or with whorled leaves and no stipules.
More results on "Rubiales (from Asteridae)" when you join.
www.britannica.com /eb/article-72934?tocId=72934   (635 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Title : Symposium: Phylogeny of Asteridae, Richmond, VA, August 1990 Abstract : Taxonomic understanding of the broad interrelationships of groups of flowering plants can both facilitate and constrain comparative study of the morphology, physiology, and ecology of plants.
Where taxa have been well sampled, deep knowledge of their evolutionary or genealogical relationships leads to fruitful comparisons of homologous structures or biochemical pathways or life-histories.
When the taxa are not well known, comparisons are often made between spuriously related forms, and arguments may perpetuate endlessly over whether convergence or true evolutionary relationship accounts for the similarity in form or function under study.
www.cs.utexas.edu /users/yguan/NSFAbstracts/Abstracts/BIO/DEB.BIO.a9005921.txt   (173 words)

  
 Rosidae   (Site not responding. Last check: 2007-10-21)
They are more advanced than the Magnoliidae by being syncarpous and less advanced than the Asteridae by being largely polypetalous rather than sympetalous or having more than two fused carpels.
The Rosidae has been distinguished from the Dilleniidae in that species with numerous stamens have the stamens initiated in centripetal (rather than centrifugal) sequence and usually do not exhibited parietal placentation which is common in Dilleniidae.
The Proteaceae should be moved to the "lower hamamelids." The two orders Cornales and Apiales are related to lineages of the Asteridae as suggested by previous morphological and chemical studies.
botit.botany.wisc.edu /courses/systematics/Phyla/Magnoliophyta/Rosidae.html   (165 words)

  
 Asteridae   (Site not responding. Last check: 2007-10-21)
Capitula in the Asteridae: A Widespread and Varied Phenomenon.
MAGAZINES The Botanical Review 10/1/1994 Nicholas, A. Baijnath, H. to restrict the circumscription of the Asteridae to the Campanulales and allies and the...
Proteaceae Rhizophoraceae Rosaceae Santalaceae Simaroubaceae Asteridae Apocynaceae Asclepiadaceae Boraginaceae Caprifoliaceae Loganiaceae...
enciclopedia.cc /Asteridae   (381 words)

  
 Systematics of the Asterids   (Site not responding. Last check: 2007-10-21)
Those groups to the right side of the cladogram may be called the Asteridae, though that term has sometimes been used to include most of the groups shown above.
The name Asteridae comes from the Asteraceae (sunflower family) which is a member of the group.
The Asteridae also includes the Campanulaceae (bell-flower family), Dipsacales (teasels and honeysuckles), Apiales (carrot group), and the Aquifoliaceae (holly family).
www.ucmp.berkeley.edu /anthophyta/asterids/asteridsy.html   (283 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
However, a majority of the shifts from zygomorphy to actinomorphy appear to have entailed a reduction in petal number and flower size, implying a mechanism other than loss of CYCLOIDEA function.
Within the Asteridae there appear to be three common forms of zygomorphy.
An explanation for the virtual absence of other forms rests on the near universality of the basic orientation of the flower in the Asteridae.
www.elsevier.com /cdweb/journals/13601385/articles/3/8/S136013859801278.abstract.en   (120 words)

  
 Evolution of the TCP Gene Family in Asteridae: Cladistic and Network Approaches to Understanding Regulatory Gene Family ...
Diagram of the TCP gene region amplified from 11 Asteridae taxa.
Primer positions in the TCP and R domains are shown as arrows and indicate the conserved amino acid sequences used for primer design.
The size of the filled circles at nodes is proportional to the number of sequences belonging to the node.
mbe.oxfordjournals.org /cgi/content/full/20/12/1997   (6514 words)

  
 CiteULike: Phylogenetic Pattern, Diversity, and Diversification of Eudicots   (Site not responding. Last check: 2007-10-21)
Dilleniidae, Rosidae, and Asteridae, as well as the order Ranunculales in the Magnoliidae sensu Cronquist).
Recent phylogenetic analyses, based on both morphological data and molecular sequences, have begun to clarify higher-level phylogenetic relationships within the eudicot clade.
One of these large asterid clades is dominated by the Asterales s.l.
www.citeulike.org /user/cmm/article/563438   (1367 words)

  
 MavicaNET - Астериды (Asteridae)   (Site not responding. Last check: 2007-10-21)
Die Asteridae sind die evolutionдr am hцchsten stehenden Angiospermen.
PBIO 450 Lecture Notes - Asteridae -- Spring 1999
He states that "the vast majority of the Asteridae can be distinguished from the vast majority of other dicotyledons by their sympetalous flowers, in which the stamens are isomerous and alternate with the corolla lobes, or fewer than the corolla-lobes".
www.mavicanet.ru /lite/rus/16509.html?sortby=1   (169 words)

  
 Present state of Angiospermae phylogeny   (Site not responding. Last check: 2007-10-21)
It corresponds to Engler's Sympetalae, to Cronquist-Stebbins-Takhtajan's Asteridae with the sympetalous dilleniids (Ericales, Primulales, Ebenales).
Other features, such as sympetaly in Asteridae, are recovering their major weight that was already proposed by the Candollean and Englerian classifications, whereas it has been reduced in the recent post-Besseyan systems.
OLMSTEAD, R.G., B. SCOTT and J. A parsimony analysis of the Asteridae sensu lato based on rbcL sequences.
www.ville-ge.ch /cjb/recherche/angiophy/angiophy.html   (5819 words)

  
 Dicotyledon Summary
Although the monocot-dicot division has been recognized since the late nineteenth century, recent phylogenetic studies demonstrate clearly that this split does not accurately reflect the evolutionary history of flowering plants.
The main branches of eudicots are the eurosids (made up of members of the traditional subclasses Rosidae, Dilleniidae, and Asteridae), the asterids (containing members of subclasses Asteridae, Dilleniidae, and Rosidae), and the Caryophyllales; there is no clade that corresponds to subclass Dilleniidae.
The first angiosperms that appear in the fossil record possess those characteristics typically assigned to the dicots, and both the monocots and eudicots evolved later.
www.bookrags.com /Dicotyledon   (1285 words)

  
 ALBACH, DIRK C. 1*, PAMELA S. 1 SOLTIS, DOUGLAS E. 1 SOLTIS, AND RICHARD G. ...   (Site not responding. Last check: 2007-10-21)
The Asteridae s.l., as circumscribed by Olmstead et al.
To elucidate the evolution of these characters, we used a combined data set of sequences from 18S rDNA, rbcL, ndhF and atpB with a total of 7165 base pairs for 130 genera.
The analysis resolved the major lineages of Asteridae s.l., confirming the usefullness of large data sets in phylogenetic systematics.
www.ou.edu /cas/botany-micro/bsa-abst/section13/abstracts/92.shtml   (195 words)

  
 asteridae - definition of asteridae by the Online Dictionary from Datasegment.com   (Site not responding. Last check: 2007-10-21)
2 definitions found asteridae - Collaborative International Dictionary of English v.0.48 : Dicotyledonae \Dicotyledonae\ n.
(Bot.) a class of plants comprising those seed plants that produce an embryo with two cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae.
[WordNet 1.5] asteridae - WordNet (r) 2.0 (August 2003) : Asteridae n : a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder [syn: Asteridae, subclass Asteridae ]
onlinedictionary.datasegment.com /word/asteridae   (135 words)

  
 (WO 2004/052299) MODIFICATION OF CYCLOOXYGENASE AND LIPOXYGENASE ACTIVITY WITH ASTERIDAE EXTRACTS AND OPTIONALLY ...   (Site not responding. Last check: 2007-10-21)
(57) Extracts from plants in the Asteridae subfamily, such as Carthamus tinctorious, are effective to selectively inhibit COX-2 activity and/or enhance COX-1 activity.
When Asteridae extracts are combined with boswellic acid, the combination exhibits a synergistic inhibitory effect on both COX-2 and LO.
Such extracts and combinations are used in methods of selectively inhibiting COX-2, inhibiting LO, and/or enhancing COX-1 activity as well as in the methods of treating conditions that would respond favorably to any of these effects.
www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=04/52299.050203   (204 words)

  
 Integrative Biology 335: Systematics of Plants
It is likely that the evolution of Asteridae is closely correlated with the evolution of insects capable of recognizing complex floral patterns
The core asterids approximate subclass Asteridae and have as synapomorphies many of the characters outlined above.
Tricolpate pollen have three long, grooved aperatures from which the pollen tube emerges during germination.
www.life.uiuc.edu /ib/335/AsteridaeI/Asteridae.html   (341 words)

  
 Lena Struwe publications
Coronas and curved stamens: shape, size, and color in the floral evolution of tribe Helieae (Gentianaceae; Asteridae).
Struwe, L. Overview of the new classification of the gentian family (Gentianaceae: Asteridae).
Struwe, L. Evolutionary diversity of floral merosity in Gentianaceae (Gentianales: Asteridae).
www.rci.rutgers.edu /~struwe/publ.html   (1787 words)

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