Self-(in)compatibility in Tunisian apple accessions [Malus domestica. Borkh]: S-genotypes identification and pollen tube growth analysis.

Self-incompatibility studies have revealed a potential use of Tunisian apple resources for crop improvement and modern breeding programs and a likely correlation between the pollen tube growth and flowering period. Apples [Malus domestica. Borkh] exhibit an S-RNase-based gametophytic self-incompatibility (GSI) system.

Self-compatibility in peach [ (L.) Batsch]: patterns of diversity surrounding the -locus and analysis of SFB alleles.

Self-incompatibility (SI) to self-compatibility (SC) transition is one of the most frequent and prevalent evolutionary shifts in flowering plants. L. (Rosaceae) is a genus of over 200 species most of which exhibit a Gametophytic SI system.

Molecular and Evolutionary Characterization of Pollen S Determinant (SFB Alleles) in Four Diploid and Hexaploid Plum Species (Prunus spp.).

In more than 60 families of angiosperms, the self- and cross-fertilization is avoided through a complex widespread genetic system called self-incompatibility (SI). One of the major puzzling issues concerning the SI is the evolution of this system in species with complex polyploid genomes. Among plums, one of the first fruits species to attract human interest, polyploid species represent enormous genetic potential, which can be exploited in breeding programs.

Identification of conserved genes linked to responses to abiotic stresses in leaves among different plant species.

As a consequence of global climate change, certain stress factors that have a negative impact on crop productivity such as heat, cold, drought and salinity are becoming increasingly prevalent. We conducted a meta-analysis to identify genes conserved across plant species involved in (1) general abiotic stress conditions, and (2) specific and unique abiotic stress factors (drought, salinity, extreme temperature) in leaf tissues. We collected raw data and re-analysed eight RNA-Seq studies using our previously published bioinformatic pipeline.

Conserved DNA-derived polymorphism, new markers for genetic diversity analysis of Tunisian L.

Pistachio trees ( L.) have been cultivated in Tunisia for decades and the plantation was extended mostly in the center of the country contributing to the economic growth of marginalized areas. Herein we used conserved DNA derived polymorphism (CDDP) technique, which target specifically conserved sequences of plant functional genes, to assess the genetic diversity and construct genetic relationships among 65 Tunisian pistachio trees.

Analysis of Self-Incompatibility and Genetic Diversity in Diploid and Hexaploid Plum Genotypes.

During the last decade, -genotyping has been extensively investigated in fruit tree crops such as those belonging to the genus, including plums. In plums, -allele typing has been largely studied in diploid species but works are scarcer in polyploid species due to the complexity of the polyploid genome. This study was conducted in order to analyze the -genotypes of 30 diploid , 17 of them reported here for the first time, and 29 hexaploid plums (24 of and 5 of ).

Combination of Simple Sequence Repeat, S-Locus Polymorphism and Phenotypic Data for Identification of Tunisian Plum Species (Prunus spp.).

Plums (Prunus spp.) are among the first fruit tree species that attracted human interest. Artificial crosses between wild and domesticated species of plums are still paving the way for creation of new phenotypic variability.