REPRODUCTIVE BIOLOGY OF A DIVERSE APRICOT (PRUNUS ARMENIACA L.) GERMPLASM FROM THE REGIONS OF HODNA AND AURÈS IN ALGERIA
| dc.contributor.author | ATEK Younes | |
| dc.contributor.author | NICOLÁS-ALMANSA María | |
| dc.contributor.author | EGEA Jose A | |
| dc.contributor.author | MARTÍNEZ-GÓMEZ Pedro | |
| dc.contributor.author | BAHLOULI Fayçal | |
| dc.date.accessioned | 2022-03-23T10:41:41Z | |
| dc.date.available | 2022-03-23T10:41:41Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | Gametophytic self-incompatibility, governed by the S-locus, functions in Prunus species including the apricot to protect self-pollination of flowers. Knowledge of the S-genotypes in apricot cultivars is essential to establishing productive orchards, defining combinations of compatible cultivars. Objective : In this study, reproductive biology of 92 apricot cultivated accessions from the regions of Aurés (semi-arid) and Hodna (semi-arid to arid) in Algeria has been evaluated. Methods : The cultivated accessions assayed included local Algerian cultivars and French and Spanish introduced cultivars with kwon S-alleles. Percentage of fertilized flowers and fruit set was evaluated in field conditions by bagging. To identify the S-alleles associated with self-incompatibility, two pairs of specific primers were tested using PCR. This PCR-based molecular tool allows S-genotypes to be characterized quickly and efficiently. Results : The origin of the apricot accessions does not influence the percentage of fertilized flowers and fruit set. Location and Year, however, have a significant influence. On the other hand, results showed a great diversity in terms of S-alleles in the Algerian germplasm. Some of these apricot cultivars are self-incompatible, and so to obtain a yield they need to be pollinated with cross-compatible cultivars. Conclusion : Results indicate that Algerian apricots represent an interesting source of new self-compatible germplasm adapted to dry conditions for Mediterranean apricot breeding programs. Determination of the S-genotype might be considered as an important addition to a set of identity markers of apricot genetic resources | en_US |
| dc.identifier.uri | http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/28375 | |
| dc.publisher | Université de M'sila | en_US |
| dc.subject | Apricot, Fruit sets, Self-incompatibility, Crosspollination, germplasm. | en_US |
| dc.title | REPRODUCTIVE BIOLOGY OF A DIVERSE APRICOT (PRUNUS ARMENIACA L.) GERMPLASM FROM THE REGIONS OF HODNA AND AURÈS IN ALGERIA | en_US |
| dc.type | Article | en_US |