Naslov
Genetic diversity of Moroccan populations of Orobanche foetida: from wild parasitic plants to parasitic weeds

Autori
Vaz Patto, Maria Carlota ; Díaz-Ruiz, Ramon ; Šatović, Zlatko ; Román, Belén ; Pujadas-Salv&agrave ; , Antonio José ; Rubiales, Diego

Izvornik
Weed Research (0043-1737) 48 (2008), 2; 179-186

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Orobanche foetida; broomrape; genetic variability; Morocco; host specialization

Sažetak
Orobanche foetida is widely distributed in western Mediterranean countries infecting wild legumes. Recently it has been reported in Morocco infecting common vetch, presenting a further constraint for legume production in this area. Comparative studies between Orobanche populations attacking wild species and Orobanche populations growing on crops from the same region may help to clarify whether a host specialisation process occurred. In the present study, the genetic variability of five O. foetida populations, four infecting wild plants and one infecting cultivated vetch in Morocco was characterised using amplified fragment-length polymorphism (AFLP) markers to elucidate the existing genetic relationship between populations and to suggest a potential origin for the recently detected vetch-infecting population. Analysis of molecular variance suggested the existence of genotypic differentiation among populations. The most genetic divergent population by cluster analysis was the population collected on Ornithopus sativus. The vetch-infecting O. foetida population was closer to the three populations infecting Scorpiurus muricatus. The possibility of the presence of a reservoir of diversity is balanced against direct genetic adaptation and completely new introduction. The potential for this Orobanche species to shift host and become a threat to agriculture exists and has to be taken into account for future legume breeding for these areas.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Drvna tehnologija

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