Genetic diversity evaluations in Turkish onion (Allium cepa L.) genotypes: principal component analyses (PCA) for breeding strategies
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
INT SOC HORTICULTURAL SCIENCE
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Sustainable plant breeding relies on available germplasm and genetic diversity. Analysis of genetic diversity in germplasm collection aids in classification of genotypes and identification of core collections with possible utility for specific breeding strategies. In the present study, principal component analysis (PCA) was used to evaluate resources of variation among some Turkish onion (Allium cepa L.) genotypes. Onion germplasm covering 96 accessions collected from different regions of Turkey were evaluated for 31 quantitative traits through principal component analyses. According to PCA results, eigenvalue was maximum in PC-I (7.74) followed by PC-II (3.25) and PC-III (2.33). Total variance percentage was maximum in PC-I (24.98) followed by PC-II (10.50) and PC-III (7.52). The first nine PCs with Eigen values >1 contributed 71.84% of the variability amongst accessions. The characters contributing more positively with PC1 were the bulb weight (0.33) and diameter of the pseudostem (0.30).
Açıklama
7th International Symposium on Edible Alliaceae -- MAY 21-25, 2015 -- Nigde, TURKEY
Anahtar Kelimeler
germplasm, variation, statistic, classification
Kaynak
VII INTERNATIONAL SYMPOSIUM ON EDIBLE ALLIACEAE
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
1143
