Results 21 to 30 of about 1,085 (191)

The Chromosome Number of Schaffnerella Gracilis (Gramineae, Chloridoideae)

Aliso, 2002
The first ever chromosome report for the monotypic genus Schaffnerella (Gramineae, Chloridoideae) is 2n = 20 (10 II) from pollen parent cells at diakinesis, which indicates diploidy and a base number of 10. The close relative Lycurus likewise has x = 10, but is tetraploid (2n = 4x = 40).
Travis Columbus, Nancy Refulio-Rodriguez
openaire   +4 more sources

Classification and Biogeography of New World Grasses: Chloridoideae

Aliso, 2007
Subfamily Chloridoideae (Poaceae) in the New World includes 72 genera (61 native, 11 introduced), 678 species (607 native), and, including intraspecific taxa, 817 total taxa. The five largest genera are Muhlenbergia (147 species), Eragrostis (111), Sporobolus (76), Bouteloua (57), and Chloris (35). Three tribes are recognized in this study: Cynodonteae,
Peterson, Paul M., Columbus, J. T., Pennington, S. J.   +2 more
core   +6 more sources

Inflorescence diversity in subtribe Eleusininae (Poaceae: Chloridoideae: Cynodonteae) [PDF]

Flora, 2017
Abstract We studied the inflorescences of 112 members of tribe Chloridoideae subtribe Eleusininae from a morphological and evolutionary perspective to identify the most frequent types and to explore the evolutionary history of selected inflorescence associated characters.
Muchut, Sebastián Elías, Pilatti, Vanesa, Uberti Manassero, Nora Graciela, Vegetti, Abelardo Carlos, Reinheimer, Renata   +4 more
core   +4 more sources

Hyperspectral leaf reflectance of grasses varies with evolutionary lineage more than with site

Ecosphere
To predict ecological responses at broad environmental scales, grass species are commonly grouped into two broad functional types based on photosynthetic pathway.
Stephanie Pau, Ryan Slapikas, Che‐Ling Ho, Shannon L. J. Bayliss, Ryan C. Donnelly, Adam Abdullahi, Brent R. Helliker, Jesse B. Nippert, William J. Riley, Christopher J. Still, Emily R. Wedel, Daniel M. Griffith   +11 more
doaj   +2 more sources

Origins Under the Blowtorch: Frequent Fire Shifts the Balance Between Sunda-Origin and Sahul-Origin Plant Species in a Tropical Savanna. [PDF]

Ecol Evol
We examined the effect of fire frequency on the composition of vegetation of different biogeographic origins, to understand how frequently an ecosystem can be subject to fire but still retain its evolutionary diversity. There was dramatic structural and biogeographic change in less than 20 years from dry tropical woodlands into savannas, creating ...
Bryceson SR, Morgan JW.
europepmc   +2 more sources

Traversing the effects of ploidy changes in different Eragrostis curvula genotypes through high-throughput RNA sequencing. [PDF]

Plant Genome
Abstract Polyploidization has played a key role in plant genome evolution. Eragrostis curvula (Schrad.) Ness, a perennial forage grass species of the Poaceae family, is an excellent model for investigating genome duplication due to its natural variation in ploidy levels.
Santoro DF, Carballo J, Pasten MC, Gallo CA, Albertini E, Echenique V.   +5 more
europepmc   +2 more sources

Evolution and diversification of the momilactone biosynthetic gene cluster in the genus Oryza. [PDF]

New Phytol
Summary Plants are master chemists and collectively are able to produce hundreds of thousands of different organic compounds. The genes underlying the biosynthesis of many specialized metabolites are organized in biosynthetic gene clusters (BGCs), which is hypothesized to ensure their faithful coinheritance and to facilitate their coordinated ...
Priego-Cubero S, Liu Y, Toyomasu T, Gigl M, Hasegawa Y, Nojiri H, Dawid C, Okada K, Becker C.   +8 more
europepmc   +2 more sources

Grass functional traits reflect the long history of fire and grazers in the savannas of Texas. [PDF]

Am J Bot
Abstract Premise Understanding relationships among grass traits, fire, and herbivores may help improve conservation strategies for savannas that are threatened by novel disturbance regimes. Emerging theory, developed in Africa, emphasizes that functional traits of savanna grasses reflect the distinct ways that fire and grazers consume biomass ...
Nerlekar AN, Spalink D, Veldman JW.
europepmc   +2 more sources

LAS ESPECIES DE MUHLENBERGIA (POACEAE: CHLORIDOIDEAE) DE ARGENTINA

Caldasia, 2009
Se presenta un estudio taxonómico de las especies nativas argentinas del género Muhlenbergia, basado en el análisis de los especímenes depositados en 48 herbarios. Se analizan diversos aspectos relativos a la clasificación, la nomenclatura y la variación
Peterson Paul, Giraldo Diego
doaj   +5 more sources

Culm anatomy of Bouteloua and relatives (Gramineae: Chloridoideae: Boutelouinae)

Acta Botanica Mexicana, 2007
Se analizaron cortes transversales de la región media del tallo de 55 taxa de Boutelouinae, con el fin de explorar la utilidad de sus caracteres en el conocimiento de las relaciones filogenéticas del grupo.
Ma. Elena Siqueiros-Delgado
doaj   +3 more sources