Diversity analysis of genetic, agronomic, and quality characteristics of bread wheat (Triticum aestivum L.) cultivars grown in Turkey
| Main Authors: | Erayman Mustafa, Ilhan Emre, Eren Abdil Hakan, Gungor Huseyin, Akgol Batuhan |
|---|---|
| Format: | Journal Book |
| Bahasa: | ind |
| Terbitan: |
Turk J Agric For
, 2016
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| Subjects: | |
| Online Access: |
http://opac.unila.ac.id/ucs/index.php?p=show_detail&id=42247 |
Daftar Isi:
- Abstract: Turkey is an important bread wheat producer. The objective of this study was to dissect the diversity of genetic, agronomic,and quality characteristics of bread wheat cultivars grown on 25% of the total wheat area in Turkey. A total of 24 wheat cultivars and5 wild progenitors of wheat were examined using 24 simple sequence repeat (SSR) primers with a known physical locus on the A, B,and D genomes of hexaploid wheat. A total of 72 bands produced 939 alleles on the wheat cultivars and wild progenitors. Markerswere efficient in discriminating the species and the highest genetic diversity information was obtained from the markers Xgwm312 andXgwm372. Microsatellite markers clearly separated cv. Pandas from all other cultivars although it was closely related to most of them interms of agronomic and quality traits. Four agronomic characteristics including yield component traits and eight bread quality analyseswere used for the diversity analyses. A significant association between morphological and bread wheat quality traits was observed whilethe correlation was weak with the genetic data. Cultivars were also classified with respect to release year and origin. Molecular variancebetween old (released before the year 2000) and new cultivars accounted for 1% of the total variation and the variance was 3% betweennational and foreign cultivars. Results showed that the number of alleles was lower in national and new cultivars compared to foreignand old cultivars. Therefore, breeding sources do not appear to improve the genetic base of wheat cultivars in Turkey. Introducing newvariation sources may be needed to broaden the narrowed gene pool of bread wheat.