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Topic: Rosoideae


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In the News (Mon 23 Nov 09)

  
  Flowering Plant Families, UH Botany   (Site not responding. Last check: 2007-09-07)
Subfamily Rosoideae, Fragaria virginiana, mountain strawberry, Mt. Spokane, WA, 2002.
Corvallis, OR Subfamily Rosoideae, Potentilla or Geum sp.
Subfamily Rosoideae, Rosa nutkana, common wild rose, vic.
www.botany.hawaii.edu /faculty/carr/ros.htm   (433 words)

  
 Rosoideae - Wikipedia, the free encyclopedia
The rose subfamily Rosoideae includes many shrubs and perennial herbs.
The circumscription of the Rosoideae is still not wholly certain; recent genetic research (e.g.
Eriksson et al., 2003) has resulted in several changes at the genus level and the removal from Rosoideae of some genera (notably Cercocarpus, Cowania, Dryas, Purshia) previously included in the subfamily.
en.wikipedia.org /wiki/Rosoideae   (103 words)

  
 Rosaceae - Article from FactBug.org - the fast Wikipedia mirror site
Traditionally it has been divided into 4 subfamilies (Rosoideae, Spiraeoideae, Maloideae or Pomoideae, and Amygdaloideae or Prunoideae), primarily diagnosed by the structure of the fruits, but this has not been universally followed.
Subfamily Rosoideae: Traditionally composed of those genera bearing small fruits, each of which is an achene or drupelet, and often the fleshy part of the fruit (e.g.
Amongst these groups Neillieae appears to be the sibling group to Maloideae, and Dryadeae may be the sibling group to Rosoideae.
www.factbug.org /cgi-bin/a.cgi?a=25665   (410 words)

  
 Masters Research Project Outlines
Molecular analyses of the Rosaceae demonstrate that Rosoideae are polyphyletic and that chromosome number is a better indicator of relationships amongst these genera.
Previous analyses of floral ontogeny in the Rosoideae either investigated a single species or were only modestly comparative when more than one genus was examined.
Therefore, it is pertinent to investigate the ontogenetic basis for variation in mature morphology from a wide sampling of Rosoideae.
ace.acadiau.ca /science/BIOL/Evans/Research/masters.htm   (314 words)

  
 - Bergius Botanic Garden - Research in Rosoideae -
The aim of this project is to clarify the phylogenetic relationships and evolution within Rosoideae of Rosaceae (Flowering plants).
A phylogenetic analysis of the Rosoideae (Rosaceae) using nuclear ribosomal ITS sequences.
The Phylogeny of Rosoideae (Rosaceae) based on sequences of the internal transcribed spacers (ITS) of nuclear ribosomal DNA and the trnL/F region of chloroplast DNA.
www.bergianska.se /forskning_rosoideae.html   (773 words)

  
 Directory of open access journals
The taxa were selected to represent the accepted four subfamilies in the family (Maloideae, Prunoideae, Rosoideae and Spiraeoideae) and most of the tribes included in them.
The results revealed that although the family as a whole represents a clearly monophyletic lineage; yet, the study did not support the traditional suprageneric classification of the family that was based on fruit type alone.
The studied taxa were distributed across the constructed phenograms independent of the previous suprageneric classification, particularly in members of the subfamilies Rosoideae and Spiraeoideae.
www.doaj.org /doaj?func=abstract&id=185976&recNo=11&toc=1   (214 words)

  
 ROSIDAE
In general, the Saxifragaceae lack stipules, have 10 or fewer stamens, albuminous seeds, and usually have a syncarpous gynoecium whereas the Rosaceae mostly have stipule, have numerous stamens (well over 10), have exalbumious seeds, and have an spocarpours or monocarpour gynoecium (except subfamily Maloideae)
Some herbaceous members of subfamily Rosoideae in which the hypanthium is not well developed bear a striking resemblance to some Ranunculaceae (e.g.
Rosoideae, and the seeds of Rosaceae lack endosperm, while those of Ranunculaceae have abundant endosperm.
www.bsu.edu /classes/badger/BOT440/lectures/families/rosidae.htm   (711 words)

  
 Botany - The Rose Family   (Site not responding. Last check: 2007-09-07)
Rosoideae - (rose-OY-dee-ee) - This is the subfamily to which roses belong.
With one exception, the plants we call "roses" all belong to a single genus within the Rosoideae.
The genus name is Rosa, which should always be written in italics or, if your typewriter or word processor can't do that, it may be underlined Rosa.
www.ars.org /About_Roses/bot-rose_family.htm   (1206 words)

  
 Rosoideae Information
The rose subfamily Rosoideae includes many shrubs and perennial herbs.
The circumscription of the Rosoideae is still not wholly certain; recent genetic research (e.g.
Eriksson et al., 2003) has resulted in several changes at the genus level and the removal from Rosoideae of some genera (notably Cercocarpus, Cowania, Dryas, Purshia) previously included in the subfamily.
www.bookrags.com /wiki/Rosoideae   (80 words)

  
 Eriksson, Torsten*, Jenny E. E. Smedmark, Malin S. Hibbs, and Pia Ostensson.   (Site not responding. Last check: 2007-09-07)
We analysed Rosoideae in this strict sense, mainly using ITS and trnL/F sequence data, rooting trees on the Filipendula branch.
Most newly discovered clades of the "backbone" of the Rosoideae tree are now well supported, and some of these require names.
If the remnants of Dryadeae is sister to Rosoideae, as some analyses indicate, the wind dispersed achenes with elongate plumose styles may be plesiomorphic within Rosoideae.
www.botany2002.org /sympos13/abstracts/8.shtml   (273 words)

  
 Canadian Botanical Association - Graduate Study Opportunities Page
Molecular analyses of the Rosaceae demonstrate that Rosoideae are polyphyletic and that chromosome number is a better indicator of relationships amongst these genera.
Previous analyses of floral ontogeny in the Rosoideae either investigated a single species or were only modestly comparative when more than one genus was examined.
Therefore, it is pertinent to investigate the ontogenetic basis for variation in mature morphology from a wide sampling of Rosoideae.
www.cba-abc.ca /gradopp.htm   (830 words)

  
 Lu Lingdi's Talk at the Mini-Symposium on Maloideae for the Flora of China, January 11-12, 1997   (Site not responding. Last check: 2007-09-07)
The four subfamilies are the Spiraeoideae, Maloideae, Rosoideae, and Prunoideae (Amygdaloideae).
In the subfamily Rosoideae, I studied the genus Rubus.
It is one of the largest genera in the Rosaceae, consisting of more than 750 species worldwide, of which about 200 species have been recognized in China.
www.fna.org /china/authors/lu's.htm   (1708 words)

  
 Millennium Roses
After more than 15 years of hybridizing, Ralph Moore considered that the lavender colors exhibited in his strain of lavender roses was derived from a combination of magenta and yellow.
Bate-Smith reported that ellagic acid is present in the sub-family Rosoideae to which the genera Rosa, Rubus, Potentilla, etc. belong.
Based on his research, formation of delphinidin in Rosoideae is possible.
rosemania.com /Millennium_Roses.htm   (916 words)

  
 Rosoideae - Biocrawler   (Site not responding. Last check: 2007-09-07)
Please see the relevant discussion on the talk page.
The following classification is based on the study by Torsten Eriksson and others, published in the International Journal of Plant Science 164: 197-211 (2003; at link below).
You can find it there under the keyword Rosoideae (http://en.wikipedia.org/wiki/Rosoideae)The list of previous authors is available here: version history (http://en.wikipedia.org/w/index.php?title=Rosoideaeandaction=history).
www.biocrawler.com /encyclopedia/Rosoideae   (225 words)

  
 IngentaConnect Characterization of Erwinia amylovora strains from different host...   (Site not responding. Last check: 2007-09-07)
The three main aims of the study were the assessment of the genetic relationship between a deviating Erwinia amylovora strain isolated from Amelanchier sp.
(Maloideae) grown in Canada and other strains from Maloideae and Rosoideae, the investigation of the variability of the PstI fragment of the pEA29 plasmid using restriction fragment length polymorphism (RFLP) analysis and the determination of the number of short-sequence DNA repeats (SSR) by DNA sequence analysis in representative strains.
Ninety-three strains obtained from 12 plant genera and different geographical locations were examined by repetitive-sequences PCR using Enterobacterial Repetitive Intergenic Consensus, BOX and Repetitive Extragenic Palindromic primer sets.
www.ingentaconnect.com /content/bsc/jam/2006/00000100/00000005/art00019   (478 words)

  
 EVANS, RODGER C.1, LAWRENCE A. ALICE2*, CHRISTOPHER S. CAMPBELL3, TIMOTHY A. ...   (Site not responding. Last check: 2007-09-07)
We cloned and sequenced a 1.8—2.0 kb region near the 5’ end of the GBSS gene of 13 Rosaceae genera: Rosa and Rubus (subfamily Rosoideae); Exochorda, Oemleria, and Prunus (Prunoideae s.
Type A GBSS maloid sequences have a large first intron and no sixth intron, and type B maloid sequences plus those of other Rosaceae have a short first intron and a sixth intron.
Parsimony analysis of Rosaceae GBSS exons with Pisum (Fabaceae) as an outgroup yields a single most parsimonious tree with separate, well supported clades of Rosoideae, Physocarpus, and type A maloid sequences and Aruncus, Prunoideae s.
www.ou.edu /cas/botany-micro/bsa-abst/section13/abstracts/135.shtml   (350 words)

  
 Evans, R., C. Campbell, D. Potter*, D. Morgan, T. Eriksson, L. Alice, S.-H. Oh, E. Bortiri, F. Gao, J. Smedmark, and M. ...   (Site not responding. Last check: 2007-09-07)
Parsimony analyses support a sister-group relationship between Rosoideae (narrowly defined with base chromosome numbers of 7 or 8) and the remainder of the family.
Nitrogen-fixing genera (redefined tribe Dryadeae) form a clade that is weakly supported as sister to the remaining members of the family outside the Rosoideae in parsimony or to Rosoideae in maximum likelihood and Bayesian analyses.
Short internal branches in the tree may suggest a rapid radiation early in the history of the family.
www.botany2002.org /sympos13/abstracts/9.shtml   (314 words)

  
 Rosales
Dryadeae (inc. Cercocarpus + Dryas + Cowania + Chamaebatia) used to be in Rosoideae, but they lack phragmidiaceous rusts; their roots are associated with N-fixing Frankia, their ovules may be atropous, and their fruits are achenes with hairy styles.
Although Rosoideae and Pyroideae are well-supported clades, little can yet be said of larger patterns of relationship in the rest of the family (e.g.
Fruit types are not as good indicators of relationships as was for a long time thought, but chemistry, chromosomes, and fungi all support the molecular realignments (see esp. Morgan et al.
www.mobot.org /MOBOT/Research/APweb/orders/rosalesweb.htm   (5361 words)

  
 [No title]
Rosoideae: General: upright or climbing shrubs, often with thorny stems; stolons or runners in Fragaria Important genera: Rubus (raspberry, flberry), Fragaria (strawberry), Potentilla (cinquefoil), Rosa (rose) Fruits: aggregate accessory: achene, drupe, hip Leaves: compound (pinnate, palmate, or ternate) with stipules  4.
Prunoideae General: trees/shrubs (generally small); showy white or pink flowers Important genera: Prunus (cherry, plum) Fruits: drupes Leaves: simple with stipules Fruits of Rosaceae General: Pericarp- The wall of the ovary in fleshy fruits consisting of 3 layers: (The thickness if the pericarp increases just prior to pollination and fertilization.) 1.
Fruits of Rosoideae: *Achene, hip, and druplets are all fruits of this subfamily *Strawberries, flberries, raspberries, and roses *Achene-dry one seeded fruit with a firm close fitting wall, the pericarp is free from the seed Strawberries are considered an aggregate fruit of achenes.
www.personal.psu.edu /faculty/r/x/rxc9/Handout09.doc   (1167 words)

  
 Rosoideae
[ Rondeletioideae ] [ Rosoideae ] [ Rottboellioideae ]
Vernacular names of plants within the Subfamily Rosoideae
For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica.
www.crescentbloom.com /plants/Subfamilia/R/Rosoideae.htm   (67 words)

  
 Rosaceae   (Site not responding. Last check: 2007-09-07)
Review the drawings in your textbook about the important features of subfamily Rosoideae.
The base chromsome number in subfamily Rosoideae is x = 7, with a few genera having x = 9.
Go on to next slide, go back to previous slide, or go to PB260 home page
www.life.uiuc.edu /ib/335/Rosaceae/Slide20.html   (48 words)

  
 The origin of the apple subfamily (Maloideae; Rosaceae) is clarified by DNA sequence data from duplicated GBSSI genes ...
because x = 7 is restricted to Rosoideae.
however, refute Rosoideae as ancestors of Maloideae because
Bracketed letters following clone refer to traditional subfamily placement of each genus (A = Amygdaloideae; M = Maloideae; S = Spiraeoideae; R = Rosoideae).
www.amjbot.org /cgi/content/full/89/9/1478   (3736 words)

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