INVESTIGADORES
GIUSSANI Liliana Monica
congresos y reuniones científicas
Título:
A MOLECULAR PHYLOGENY OF PENNISETUM AND CENCHRUS (POACEAE)
Autor/es:
DONADÍO S., GIUSSANI L., KELLOGG E., ZULOAGA F., Y MORRONE O.
Lugar:
San Isidro Buenos Aires
Reunión:
Jornada; Reunión Argentina de Cladística y Biogeografía; 2007
Institución organizadora:
Instituto Darwinion
Resumen:
Pennisetum Rich. (80-140 species) and CenchrusRich. (80-140 species) and Cenchrus
L. (16-22 species) are very closely related
genera of Paniceae, both concentrated in the tropics
and subtropics of the world (Clayton & Renvoize,
1986). The main difference between these
genera lies on their involucral bristles: in CenchrusCenchrus
the bristles always show some degree of
fusion at the base, while in Pennisetum the bristles
are usually free (DeLisle, 1963; Clayton &
Renvoize, 1986; Crins, 1991). Moreover, the
involucral bristles in Cenchrus are commonly flat,
stiff, spiny and retrorsely barbed, while PennisetumPennisetum the bristles
are usually free (DeLisle, 1963; Clayton &
Renvoize, 1986; Crins, 1991). Moreover, the
involucral bristles in Cenchrus are commonly flat,
stiff, spiny and retrorsely barbed, while PennisetumCenchrus are commonly flat,
stiff, spiny and retrorsely barbed, while PennisetumPennisetum
exhibits filiform, and antrorsely scabrous
bristles (DeLisle, 1963; Clayton & Renvoize,
1986; Wipff, 2003). However, Pennisetum andPennisetum and
Cenchrus are not sharply separated due to a morphological
gradation between them, with speciesare not sharply separated due to a morphological
gradation between them, with species