Tunisia, being part of the secondary center diversity for durum wheat, has rich unexploited landraces that are continuously lost and replaced by high yielding modern cultivars. This study aimed to investigate genetic population structure 196 wheat lines issued from collected Tunisia using Diversity Array Technology sequencing (DArTseq) understand possible ways introduction in comparing them surrounding countries. A total 16,148 polymorphic DArTseq markers covering equally B genomes were...

It was demonstrated that some North Africa barley accessions have diverse tolerance sources for abiotic stresses and a good nutritional quality, but the studies done were incomplete since they realized separately in each country apart. To implement more complete analysis, 31 originated from (Algeria, Tunisia Egypt) analyzed using 11 SSR markers selected seven linkage groups studying genetic diversity among these chosen accessions. Over markers, total of 478 reproducible bands scored with an...

Wheat production in semi-arid area of Tunisia is limited by low rainfall (200-400 mm year-1), and the irregularity distribution precipitation intensification drought during cropping season. Therefore, irrigation proposed as alternative to improve maximize water-use efficiency (WUE) wheat. So, rational important for increasing crop yields decrease water use. The objective this study was investigate effects different levels on consumption, use total dry matter grain yields. conducted three...

An experimental study was carried out under semi controlled conditions at National Agronomic Research Institute of Tunisia in Ariana station. Eight main Tunisian Durum wheat (Triticum turgidum L.) varieties were grown salinity conditions. The objectives this research to compare the behaviour salt stress. Many agronomic and physiological traits evaluated both saline (10 g NaCl/l) non (control). Results showed that negatively affected all studied parameters. tiller number, chlorophyll...

<p>On-farm trial was conducted from 2005 to 2008 test the hypothesis that reduction of total dry matter (TDM) in crops can occur after a decreased radiation use efficiency (RUE) due shortage nitrogen and irrigation, we applied three irrigations treatments (D1, D2 D3) four rates (N1, N2, N3 N4). Photosynthetic active absorbed or cumulative light interception (PARabs) RUE Durum wheat were measured. Results showed D1N1 treatment recorded highest LAI, PARabs, TDM RUE. The maximum LAI...

In water-limited areas of Tunisia, more than 30% subsurface water used for irrigation is saline water, leading to a long-term salinization and degradation processes. To prevent the problems minimize negative impact using selection proper germplasm as well integrated soil management are essential. Understanding diversity salt tolerance in barley (Hordeum vulgare L.) genotypes will facilitate their use genetic improvement. Our objectives were evaluate, green, house-salt 14 cultivars under...

Our study focuses on the molecular analysis of genetic diversity within 15 Tunisian durum wheat varieties and assessment efficiency some available markers to select valuable genotypes for technological proprieties semolina (i.e. parameters related SDS-sedimentation, mixing time breakdown resistance mixograph, grain protein content yellow colour). While several were validated, others not informative used. A high level polymorphic information (PIC) was detected, with an average 5.2 polymorph...

Abstract. Kara K, Rached-Kanouni M, Mnasri S, Khammar H, Ben Naceur MB. 2020. Genetic variability assessment in bread wheat (Triticum aestivum) grown Algeria using microsatellites SSR markers. Biodiversitas 21: 2638-2644. The of genetic diversity is a key step evaluating the adaptation populations to new environmental conditions, and thus selection cultivars. present investigation aimed assess aestivum L.) genotypes Algeria. 17 hexaploid were assessed 16 molecular (Simple Sequence Repeat)....

Within the last decade, checklists of fungi several countries have been published or updated. Nevertheless, no macromycetes hitherto for Tunisia (North Africa) apart from a mycocoenological study reporting 34 listed species. This work presents list collected January 2014 to March 2015 in six governorates northern Tunisia. One hundred and twenty-three species (117 basidiomycetes ascomycetes) belonging 78 genera 46 families were recorded.

The genetic diversity of a set 21 hexaploid wheat germplasm from the National Agronomic Institute Tunisia were investigated by applying 26 agro morphological traits and 10 microsatellites molecular markers (Simple Sequence Repeat).The variability was analyzed using Principal Component Analysis (PCA) cluster analysis based on ward's method square Euclidean distance.Eighteen primer pairs tested for all genotypes, among them primers generated polymorphic reproducible profiles.They revealed...

During the 1970s, Tunisian durum wheat landraces were replaced progressively by modern cultivars. These are nowadays maintained smallholder farmers in some ecological niches and threatened gradually extinction resulting narrowing of genetic diversity. This study aims to investigate patterns phenotypic variability using twelve quantitative traits a panel 189 seven checks, based on farmer’s population name attribution structure. Our results showed high among within checks for ten out studied...

In order to characterize and conserve the endemic pastoral species Medicago tunetana, many prospecting missions were carried out in mountainous regions of Tunisian ridge. Twenty-seven eco-geographical morphological traits studied for six M. tunetana accessions followed by molecular analysis using seven Simple Sequence Repeat (SSR). Only five markers polymorphic reproductible populations. A total 54 alleles observed with an average 10.8 bands/primer/genotype. Mean Polymorphism Information...

Abstract Genetic diversity of three durum wheat cultivars (Triticum Desf.) and thirteen Aegilops geniculata Roth accessions belonging to different regions Tunisia (in North Central) was evaluated using random amplified polymorphic DNA (RAPD) markers. Nineteen arbitrary universal primers were used for the amplification sequences. Data analysed with SIMQUAL program NTSYS-pc. Phylogenetic diagram drowning UPGMA algorithm. Results indicate an important inter—specific polymorphism between wheat....