| Abstrakt: |
In any country, genetic resources are valuable assets for sustainable development. Having an accurate knowledge of genetic behavior and identification of genomic loci associated with important economic traits can help breeders run their breeding programs efficiently. Fourteen important pomological traits were measured in 45 table grape cultivars during three successive years (2016, 2017, and 2018). The molecular profile of the studied cultivars was prepared with 39 (simple sequence repeat) SSR primer pairs. Based on the SSR markers, genetic structure analysis revealed two subpopulations (K= 2) in the association panel. In association analysis, while using the mixed linear model, seven loci were found to be significantly associated with the studied traits (p=0.05). Breeding values were also estimated for the pomological traits using the best linear unbiased prediction (BLUP). 'Saghal Solian', 'At Ouzum', 'Garmian', 'Rishbaba Qermez', 'Taifi', 'Shahroudi', 'Sahebi Qermez', 'Lal Qermez', 'Alhaghi', 'Sarghola', 'Chava Ga', 'Qzl Ouzum' and 'Agh Shani' table grape cultivars showed high and positive breeding values for cluster length, width, and weight. 'Garmian', 'Rishbaba Qermez', 'Fakhri', 'Agh Shani', 'Lal Sefid', and 'Shirazi' had positive and high breeding values for pollen germination, fruit set in open pollination, and fruit set under controlled pollination. Finally, 'Sarghola' and 'Qzl Ouzum' showed positive, highest breeding values for berry weight, flesh weight, cluster length, cluster width, and cluster weight. Cultivars with high and positive breeding values can be used as good parents for the breeding of traits in hybridization programs because they can better transfer the desirable characteristics to progeny in each case. [ABSTRACT FROM AUTHOR] |
