Characterization of host tolerance to Striga hermonthica

Horizontal gene transfer by the parasitic plant Striga hermonthica.

Horizontal gene transfer has been postulated to occur between crops to co-occurring parasitic plants, but empirical evidence has been lacking. We present evidence that an HGT event moved a nuclear monocot gene into the genome of the eudicot parasite witchweed (Striga hermonthica), which infects many grass species in Africa. Analysis of expressed sequence tags revealed that the genome of S. herm...

Effects of ALS-inhibitor herbicides, crop sequence, and fertilization on natural soil suppressiveness to Striga hermonthica

Striga hermonthica remains one of the greatest biological threats to cereal production in the savannahs of sub-Saharan Africa. Control efforts at the International Institute of Tropical Agriculture (IITA), Nigeria, focus on developing integrated S. hermonthica management (ISM) options such as legume-cereal rotation, use of host–plant resistance, soil-based biological control exploiting enhancem...

Resistance to Striga hermonthica in Wild Accessions of the Primary Gene Pool of Pennisetum glaucum.

ABSTRACT Resistance to Striga hermonthica in 274 wild Pennisetum glaucum subsp. monodii and stenostachyum accessions was evaluated at Samanko, Mali in 1997 and 1998, and at Cinzana, Mali and Sadoré, Niger in 1998. Data recorded included number of striga plants per plot at least three times during the season, date of striga emergence, number of Pennisetum plants, Pennisetum anthesis date, and do...

Genetic Diversity of Striga hermonthica Populations in Ethiopia: Evaluating the Role of Geography and Host Specificity in Shaping Population Structure

Virulence Study of Striga hermonthica Populations from Tigray Region (Northern Ethiopia)

Striga hermonthica is a severe problem in the cereal growing regions of Northern Ethiopia. Nineteen Striga population samples were evaluated for their virulence against two resistant sorghum varieties currently being promoted for use in the area using an in vitro system. Nine out of the 19 populations tested were able to attack the resistant sorghum varieties (SRN 39 and P-9401). Most of the hi...