Quantitative trait loci (QTL) analysis for antioxidant and agronomically important traits in tomato (Lycopersicon esculentum)

Authors

BİLAL ÖKMEN
HASAN ÖZGÜR ŞIĞVA
NERGİZ GÜRBÜZ
MEHMET ÜLGER
ANNE FRARY
SAMİ DOĞANLAR

DOI

10.3906/tar-1008-1207

Abstract

Tomato is one of the most widely produced and consumed vegetable crops worldwide. Plant breeders have usually focused on improvement of horticulturally important traits such as yield, fruit size, shape and colour. With increased attention on human health, however, plant breeders also consider the improvement of health-related traits of fruits and vegetables such as antioxidant characters. In the present study, genes controlling both health-related and horticulturally important traits were mapped in the tomato genome using 152 Lycopersicon hirsutum BC_2F_2 individuals. For this aim, all plants were phenotypically and genotypically characterised and a total of 75 QTLs were identified for all traits. Of the 75 QTLs, 28 were identified for 5 antioxidant traits including total water soluble antioxidant capacity, vitamin C, total phenolics, total flavonoids, and lycopene contents, and 47 QTLs were identified for 8 agronomic traits including fruit weight, external and internal fruit colour, fruit firmness, fruit shape, stem scar size, locule number, and wall thickness. Markers linked with these QTLs can be used in marker assisted selection (MAS) for improvement of elite tomato lines.

Keywords

Tomato, quantitative trait loci, linkage map, antioxidant, agronomic traits, marker assisted selection

First Page

501

Last Page

514

Recommended Citation

ÖKMEN, BİLAL; ŞIĞVA, HASAN ÖZGÜR; GÜRBÜZ, NERGİZ; ÜLGER, MEHMET; FRARY, ANNE; and DOĞANLAR, SAMİ (2011) "Quantitative trait loci (QTL) analysis for antioxidant and agronomically important traits in tomato (Lycopersicon esculentum)," Turkish Journal of Agriculture and Forestry: Vol. 35: No. 5, Article 6. https://doi.org/10.3906/tar-1008-1207
Available at: https://journals.tubitak.gov.tr/agriculture/vol35/iss5/6