Neila Trifi-Farah

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Domestication generally implies a loss of diversity in crop species relative to their wild ancestors because of genetic drift through bottleneck effects. Compared to native Mediterranean fruit species like olive and grape, the loss of genetic diversity is expected to be more substantial for fruit species introduced into Mediterranean areas such as apricot(More)
The impact of mapped microsatellites on the study of genetic diversity of Tunisian apricot accessions was assessed. The genetic variability of 47 traditional apricot cultivars originating from several areas in Tunisia was investigated with 32 polymorphic microsatellite loci selected for their location throughout the eight linkage groups of Prunus genome.(More)
In order to evaluate the genetic diversity in Lathyrus genus, the Inter Simple Sequence Repeats method (ISSR) was exploited in five populations. These consisted of two cultivated species belonging to section Lathyrus (L. sativus L. and L. cicera L.) and a wild one belonging to the section Clymenum (L. ochrus DC.). Two 3′anchored ISSR primers and two(More)
Amplified fragment length polymorphism (AFLP) markers were used to characterize the genetic diversity within and among natural populations and cultivars of Hedysarum coronarium. Twelve populations within Tunisia were evaluated with three AFLP primer combinations. A total of 207 reproducible bands was detected of which 178 (86%) were polymorphic. The great(More)
Microsatellite polymorphisms in 54 apricot landrace cultivars were identified by using 26 Prunus microsatellite primers. Samples of apricot cultivars were collected in eight growing regions in Tunisia ranging from the north to the south of the country and from the sub-humid to the saharian areas. The primers revealed 103 alleles and 155 different genotypes(More)
Mediterranean Hedysarea species constitute important phytogenetic resources able to promote forage production and to valorize grasslands currently damaged by severe genetic erosion. The study of genetic diversity in nine Mediterranean Hedysarea species found in North Africa was performed using the AFLP technique. The eight primer combinations generated, on(More)
Powdery mildew, caused by Sphaerotheca pannosa var. Persicae, is one of the most important diseases in apricot production areas around the world. The transmission of resistance to powdery mildew and the identification of related quantitative trait loci (QTLs) were analysed during 3 years in two F1 apricot progenies derived from the crosses ‘Bergeron’ ×(More)
Sequences of the internal transcribed spacers (ITS) of nuclear ribosomal DNA were analysed to precise their length (637–643 bp) and resolve phylogenetic relationships among eight Mediterranean species of the genus Hedysarum (Fabaceae). The infra-specific variability levels of the ITS sequences of spontaneous population of H. coronarium proved a lack of(More)
The genetic diversity in Tunisian perennial ryegrass (Lolium perenne) was examined by the help of inter-simple sequence repeats (ISSR). Starting from eighteen accessions, a large number of polymorphic ISSR markers were currently generated using appropriate primers (a total of 136, which average of 12.6 polymorphic bands/primer). These markers were(More)
Apricot was introduced into the Mediterranean Basin from China and Asian mountains through the Middle-East and the Central Europe. Traditionally present in Tunisia, we were interested in accessing the origin of apricot species in the country, and in particular in the number and the location of its introductions. A set of 82 representative apricot accessions(More)