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Topic: Chloridoideae

In the News (Wed 23 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

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Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	HILU, KHIDIR W.*, LAWRENCE A. ALICE, AND WEIPING ZHANG.
		We sequenced the entire coding region of the chloroplast gene matK of 32 Poaceae taxa including 18 genera of subfamily Chloridoideae, 11 genera representing subfamilies Arundinoideae, Bambusoideae, Centothecoideae, Panicoideae, Pooideae, and Oryzoideae plus the sister taxon Joinvillea (Joinvilleaceae) as an outgroup.
		The Chloridoideae appear as a monophyletic lineage supported with a 92% bootstrap value.
		The remaining Chloridoideae genera sampled represent the tribes Chlorideae, Eragrostideae, and Pappophoreae.
	www.ou.edu /cas/botany-micro/bsa-abst/section13/abstracts/142.shtml (251 words)

	Paul M. Peterson
		I am most interested in species and generic relationships, and biogeographical patterns in the subfamily Chloridoideae.
		My specialty is biosystematic studies of the grasses (Poaceae) and grass-like families (Cyperaceae) using a multitude of techniques ranging from in depth morphological, anatomical, cytological, micromorphological, molecular, cladistic, and population based genetic studies using soluble enzymes.
		Peterson, P. Systematics of the Muhlenbergiinae (Chloridoideae: Eragrostideae).
	www.si.edu /ofg/Staffhp/PetersonP.htm (235 words)

	Merck - AAAS Undergraduate Science Research Program - Scholar 2
		The Panicoideae and Chloridoideae grass subfamilies together comprise the great majority of the grass flora of tropical and subtropical regions of the world.
		These subfamilies differ in their distributions across natural precipitation and salinity gradients, with species of the Chloridoideae found in drier and more saline environments than those of the Panicoideae.
		As little is known of physiological differences between the two subfamilies that might account for these distributional differences, we will therefore compare the physiology of a selected group of species from these subfamilies grown under several different conditions of imposed drought and soil salinity.
	www.southwestern.edu /~footezm/merckScholar2004guel.htm (308 words)

	Biology 434 - Agrostology
		Aristideae is somewhat similar to Stipeae in having one floret per spikelet, a lemma that bears a long awn from the tip, and large glumes.
		A layer of cells normally sheathing the vascular bundle and derived from the same cells as the vascular tissue is absent (such a layer is found in all other C4 grasses)
		C3 grass with mostly a predominantly membranous ligule, or reduced to a thickened rim of tissue, sometimes absent, top of leaf sheath often bearing thick bristles (these arise from the sheath rather than blades).
	www.homepage.montana.edu /~mlavin/b434/lec10.htm (763 words)

	Neves, Susana S., Lawrence A. Alice, and Khidir W. Hilu. (Site not responding. Last check: 2007-10-26)*
		The Chloridoideae is one of the most difficult grass subfamilies with a history of unsettled taxonomic problems at the tribal and generic levels.
		However, a prominent polytomy at the base of the phylogeny prevented the determination of the basal lineages of the Chloridoideae and an assessment of character evolution in the subfamily.
		Combined analysis of matK and trnT-trnF data further support Triraphis as sister to the remaining Chloridoideae followed by a grade comprising clade A, then clades B and C. The Chloridoideae, as traditionally defined, is strongly supported with Centropodia plus Merxmeullera as sister group.
	www.botany2002.org /section12/abstracts/224.shtml (249 words)

	Lawrence A. Alice - Pubs
		Evolution of the Fucaceae (Phaeophyceae) inferred from nrDNA-ITS.
		Systematics of Chloris (Chloridoideae; Poaceae) and related genera: Evidence from nuclear ITS and chloroplast matK sequences.
		The root of the Chloridoideae (Poaceae) revisited: a preliminary assessment based on trnT-trnF and matK DNA sequences.
	bioweb.wku.edu /faculty/Alice/pubs.html (769 words)

	Biology 434 - Agrostology
		There is no distinctive morphological traits of this tribe, and for the purposes of this course, it is characterized as a group of grass genera of subfamily Chloridoideae that lack the traits of the other tribes, namely Chlorideae and Aeluropodeae.
		Because all Pooideae are cool season grasses and all Chloridoideae are warm season, the habitat of the genera of Eragrosteae is expected to be very different from that of the genera of Pooideae.
		Also, lemmas with 3 distinct veins and ligules composed of mostly hairs are common in Chloridoideae (including Eragrosteae) but very uncommon or absent in Pooideae (including Aveneae and Poeae).
	www.homepage.montana.edu /~mlavin/b434/lec7a.htm (606 words)

	Peterson, Paul M.
		There are 273 taxa that occur in North and Central America, and 145 taxa that occur in North, Central, and South America.
		This pattern of distribution suggests that the Chloridoideae probably radiated in a north to south direction following their introduction into the New World.
		A classification of subfamily Chloridoideae will also be presented.
	www.botany2002.org /section12/abstracts/163.shtml (243 words)

	Poaceae Phylogeny (Site not responding. Last check: 2007-10-26)
		Significant relationships that appear consistently in all analyses of all data sets and are strongly supported by the combined analysis include the following: Joinvilleaceae are sister to a monophyletic Poaceae; the earliest diverging lineages of the Poaceae are the Anomochlooideae, Pharoideae, and Puelioideae, respectively; and all remaining grasses form a clade.
		The PACCAD Clade is monophyletic, containing Aristidoideae, Danthonioideae, Arundinoideae s.str., Chloridoideae s.l., Centothecoideae, Panicoideae, Eriachne, Micraira, and Gynerium.
		Based on the phylogeny, a classification of 11 previously published subfamilies (Anomochlooideae, Pharoideae, Puelioideae, Bambusoideae, Ehrhartoideae, Pooideae, Aristidoideae, Arundinoideae, Chloridoideae, Centothecoideae,, and Panicoideae) and 1 new subfamily (Danthonioideae) is proposed.
	www.uic.edu /labs/bios/robie/Abstracts/AbstrGPWG.htm (285 words)

	default
		Pooideae is C3, blooms early in the year in rich soils, and has few representatives in Florida, usually has distinctly expanded nodes.
		2 Chloridoideae is C4, blooms late, and has many representatives in Florida, nodes not expanded - maybe only a small bump.
		Note: Phragmites is often mistaken for Neyraudia (of the Chloridoideae).
	www.virtualherbarium.org /teach/GrassSys/grasssys5.html (438 words)

	Salinity Tolerance Mechanisms of Grasses in the Subfamily Chloridoideae. - Crop Science - HighBeam Research
		Salinity Tolerance Mechanisms of Grasses in the Subfamily Chloridoideae.
		Forage grasses and turfgrasses are increasingly being subjected to salinity stress, due to accelerated salinization of irrigated agricultural lands worldwide, and to increased use of reclaimed and other secondary water sources for irrigating turfgrass landscapes.
		The objective of this study was to examine salinity responses of a number of important forage and turfgrass genera in the subfamily Chloridoideae in attempt to gain understanding of salinity tolerance mechanisms operating in this subfamily.
	www.highbeam.com /doc/1G1-55369522.html?refid=ip_hf (150 words)

	ZoomInfo Web Summary: J. Columbus (Site not responding. Last check: 2007-10-26)
		Columbus has become a master of grasses with particular expertise in "Chloridoideae" (say that 3 times fast-if you can even say it once), a sub-family within the larger grass family.
		Columbus is roughly a quarter of the way through a lifetime goal of completing an exhaustive sampling of all 1,500 species in the Chloridoideae family.
		This detailed work includes mapping the DNA sequence of each species and intimately investigating their anatomy and overall structure as well as supporting this with examining habitats, collecting specimens and propagating a variety of species.
	www.zoominfo.com /directory/Columbus_J._248791693.htm (1026 words)

	Evolution and Systematics of Grasses
		At this point, we are combining information from prolamin (seed storage protein) proteins, prolamin genes, plastid matK gene and trnT-F non-coding region and, the ITS nuclear region.
		We have reconstructed with sequence data a phylogeny of the grass family, the subfamily Chloridoideae, and genera like Eleusine, Chloris and Oryza.
		We have generated the largest single-gene phylogeny for the grass family as a whole and also for the subfamily Chloridoideae.
	www.biol.vt.edu /faculty/hilu/research/evolgrasses.html (227 words)

	HON Allergy Glossary, Grass Pollens
		New plant growth can not occur if the shoot tip is removed and the grasses are unique in that the shoot tip is at the stem base, thus they withstand being mowed or grazing.
		The Poaceae are generally divided into 5 (or 6) subfamilies: Pooideae, Panicoideae, Bambusoideae, Chloridoideae, Arundinoideae and sometimes Oryzoideae, a subtype of Bambusoideae.
		Poaceae are characterised by their long, narrow leaves which form sheaths around the stem and flowers lacking in petals and sepals.
	www.hon.ch /Library/Theme/Allergy/Glossary/grass.html (973 words)

	Title page for ETD etd-11597-103132 (Site not responding. Last check: 2007-10-26)
		Seven major groups were well resolved on the most parsimonious tree, corresponding to the seven commonly recognized subfamilies: Aruninoideae, Bambusoideae, Centothecoideae, Chloridoideae, Panicoideae, Pooideae and Oryzoideae.
		Approximately 960 base pairs of the matK gene were sequenced from grass species representing 48 genera, 21 tribes, and seven subfamilies to reconstruct a phylogeny for the Poaceae.
		The Chloridoideae, Panicoideae, Arundinoideae, and the centothecoid Zeugitis (PACC group) emerged as a monophyletic assemblage with 95% bootstrap support.
	scholar.lib.vt.edu /theses/available/etd-11597-103132 (822 words)

	IngentaConnect Pollen morphology of the Chloridoideae Gramineae
		Pollen grains of 57 species (representing 42 genera) of the Chloridoideae have been investigated using light, scanning and transmission electron microscopy.
		An evolutionary trend is proposed that awaits verification by further systematic study.
		Pollen characters can be used as indicators for the areas of origin and distribution of the Chloridoideae.
	www.ingentaconnect.com /content/tandf/sgra/2004/00000043/00000004/art00006 (132 words)

	Liu Qing @ www.efloras.org
		Liu Q, Zhao N X, Hao G. Pollen morphology of the Chloridoideae (Gramineae).
		Liu Q, Zhao N X. Pollen morphology of the Chloridoideae (Gramineae).
		Phylogenetic and evolutionary studies of the subfamily Chloridoideae (Poaceae).
	www.efloras.org /person_profile.aspx?person_id=8378 (144 words)

	Royal Botanic Gardens, Grasses and their uses, Classified Information
		Teff (Eragrostis tef) belongs to the tropical sub-family Chloridoideae
		The Chloridoideae occupies the drier regions of the tropics and sub-tropics, often in stressful habitats.
		Its members possess the more complex C4 form of photosynthesis that enables them to survive in hot tropical conditions with high light intensity and limited water availability.
	www.rbgkew.org.uk /plants/grasses/classified.html (431 words)

	Molecular Characterization of Polygalacturonases as Grass Pollen-Specific Marker Allergens: Expulsion from Pollen via ...
		to the subfamily of Chloridoideae, which are abundant in the
		Chloridoideae, with serum IgE of a grass pollen allergic patient
		IgE from a grass pollen allergic patient, cosensitized to the
	www.jimmunol.org /cgi/content/full/172/10/6490 (6087 words)

	Climate and the U.S. distribution of C4 grass subfamilies and decarboxylation variants of C4 photosynthesis -- Taub 87 ...
		The distributions of the Panicoideae and Chloridoideae subfamilies
		between the frequency of the Panicoideae and Chloridoideae subfamilies
		of 0.61, and of the Chloridoideae subfamily with annual precipitation
	www.amjbot.org /cgi/content/full/87/8/1211 (2241 words)

	DELTA Sample Data - Character List
		All the leaf anatomical data in these descriptions refer to preparations made from the mid-zone of the laminae of mature, ‘normal’ leaves; and descriptions of the epidermis refer exclusively to the lower (abaxial) surface of the blade.
		Sometimes (and commonly in Chloridoideae) linking with bulliforms to divide the blade longitudinally into ‘compartments’, which exhibut varying degrees of completeness from genus to genus.
		All the leaf anatomical data in these descriptions refer to preparations made from the mid-zone of the laminae of ‘normal’, mature leaves.
	www.biologie.uni-hamburg.de /b-online/delta/grass/www/chars.htm (10199 words)

	Chloridoideae
		[ Chloanthoideae ] [ Chloridoideae ] [ Chondrilloideae ]
		Vernacular names of plants within the Subfamily Chloridoideae
		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/C/Chloridoideae.htm (67 words)

	Amazon.ca: Genera of New World Eragrostideae (Poaceae: Chloridoideae: Books (Site not responding. Last check: 2007-10-26)
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		Top of Page : Genera of New World Eragrostideae (Poaceae: Chloridoideae
	www.amazon.ca /exec/obidos/ASIN/9997974956 (136 words)

	PETERSON, PAUL M.*, J. TRAVIS COLUMBUS, ROSA CERROS TLATILPA, and MICHAEL S. KINNEY.
		Rancho Santa Ana Botanic Garden, Claremont, CA 91711.
		- Phylogenetics of Muhlenbergia and relatives (Poaceae: Chloridoideae) based on internal transcribed spacer region sequences (nrDNA).
		Although only 32 species of Muhlenbergia have been sampled at this writing, it is already clear that the ITS region will contribute much to our understanding of the diversification of this lineage.
	www.botany2001.org /section12/abstracts/33.shtml (317 words)

	A Fossil Grass (Gramineae: Chloridoideae) from the Miocene with Kranz Anatomy -- THOMASSON et al. 233 (4766): 876 -- ...
		A Fossil Grass (Gramineae: Chloridoideae) from the Miocene with Kranz Anatomy -- THOMASSON et al.
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		A Fossil Grass (Gramineae: Chloridoideae) from the Miocene with Kranz Anatomy
	www.sciencemag.org /cgi/content/abstract/233/4766/876 (235 words)

	Relationships of cereal crops and other grasses -- Kellogg 95 (5): 2005 -- Proceedings of the National Academy of ...
		and Oryzoideae, and a later one leading to Panicoideae, Chloridoideae,
		radiation, which led to the Panicoideae, Chloridoideae, the tiny
		was formed at least as early as the common ancestor of Chloridoideae
	www.pnas.org /cgi/content/full/95/5/2005 (3436 words)

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