Origin, diffusion and reproduction of the giant reed (Arundo donax L.): a promising weedy energy crop
Articolo
Data di Pubblicazione:
2010
Citazione:
Origin, diffusion and reproduction of the giant reed (Arundo donax L.): a promising weedy energy crop / C. Mariani, R. Cabrini, A. Danin, P. Piffanelli, S. Gomarasca, M. Di Candilo, F. Grassi, C. Soave. - In: ANNALS OF APPLIED BIOLOGY. - ISSN 0003-4746. - 157:2(2010), pp. 191-202. [10.1111/j.1744-7348.2010.00419.x]
Abstract:
Giant reed (Arundo donax) is a promising energy crop of the Mediterranean
areas. It has long been associated with humans and has been cultivated in
Asia, southern Europe, North Africa and the Middle East for thousands of
years. It is a perennial herbaceous plant (Poaceae) found in grasslands and
wetlands throughout a wide range of climatic zones. Amplified fragment
length polymorphism (AFLP) analysis was used to assess genetic inter and
intrarelationships between A. donax and other Arundo species. Furthermore,
the development of the sexual apparatus was analysed to understand the basis
of sterility in the accession examined. The dendrograms obtained by phenetic
and cladistic analysis support the monophyletic origin of giant reed and suggest
that it originated in Asia and began to spread into the Mediterranean without
traces of hybridisation with the other Arundo species. In particular, samples
from Mediterranean areas are characterisd by a lower gene diversity and
incidence of rare AFLP fragments indicating that these populations are recent
in origin. Moreover, results indicate the occurrence of post-meiotic alterations
in the ovule and pollen developmental pathway. Thus, the success of giant
reed can be attributed mainly to its rapid clonal spread by rhizome extension,
flood dispersal of rhizome and culm fragments.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Diffusion; energy crop; invasive species; origin; ovule; pollen; weed
Elenco autori:
C. Mariani, R. Cabrini, A. Danin, P. Piffanelli, S. Gomarasca, M. Di Candilo, F. Grassi, C. Soave
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