TY  - JOUR
TI  - Investigation of genetic variation in Tunisian date palm (Phoenix dactylifera L.) cultivars using ISSR marker systems and their relation with fruit characteristics
AB  - Phoenix dactylifera L. was introduced in Tunisia a very long time ago and plays an important socioeconomic role, especially in the south of the country. Genetic diversity and relationships among 26 cultivars were assessed with 7 ISSR primers. A total of 43 amplified bands were obtained. Principal component analyses based on Nei genetic distances showed no geographical separation with the exception of the Dhahbi cultivar, which has a limited geographical distribution. A group of cultivars that are also phonetically clustered was distinguished. These cultivars have a common maturity period and a common fruit consistency. The Mantel test emphasizes a significant correlation between genetic distance and fruit consistency (r = −0.120; P = 0.026). A significant diff erentiation was observed between the soft and dry subpopulations (PhiPT = 0.126; P = 0.007). Discriminant analyses highlight the association of markers with fruit consistency groups. Fruit consistency is an economically important feature. In the future, these findings may be utilized for improving management strategies in Tunisia and other countries where date palms are economically signifi cant.
AU  - ELBEKKAY, Mokhtar
AU  - HAMZA, Hammadi
AU  - BENABDERRAHIM, Mohamed Ali
AU  - FERDAOUS, Guasmi
AU  - TRIKI, Tebra
AU  - FERCHICHI, Ali
PY  - 2012
JO  - Turkish Journal of Biology
VL  - 36
IS  - 4
SN  - 1300-0152
SP  - 449
EP  - 458
DB  - TRDizin
UR  - http://search/yayin/detay/133292
ER  -