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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jgen/097/05/1389-1406

    • Keywords

       

      genetic resources; oil content; QTL mapping; yield; yield components.

    • Abstract

       

      Identification of superior alleles for agronomic traits in genetic resources of oilseed rape (Brassica napus L.) would be useful for improving the performance of locally adapted cultivars in Iran. The objective of the present work was to analysethe genetic variation and inheritance of important agronomic traits in a doubled haploid population derived from a cross between two German oilseed rape cultivars, Sansibar and Oase. Field experiments were performed in 2016–2017 with 200 doubled haploid lines and the parental genotypes applying an alpha-lattice design with two replicates. Phenological traits were recorded duringthe cultivation period and at maturity, seed yield, yield components and seed quality traits were determined. Significant genetic variation was found in most of the traits and heritabilities ranged from medium (48.5%) for days to end of flowering to high (92.6%) for oil content. A molecular marker linkage map was used to map 36 QTL for different traits on 17 linkage groups. Betweenthree and four QTL were identified for each seed yield, seed weight, oil and protein content. Some of the plant material and positive QTL alleles identified for agronomic traits may be useful for improving those characters in locally adapted cultivars in Iran.

    • Author Affiliations

       

      FARSHAD FATTAHI1 BARAT ALI FAKHERI1 MAHMOOD SOLOUKI1 CHRISTIAN MÖLLERS2 ABBAS REZAIZAD3

      1. Department of Biotechnology and Plant Breeding, University of Zabol, Zabol 538-98615, Iran
      2. Department of Crop Science, Georg-August-Universität Göttingen, Von-Siebold-Str. 8, 37075 Göttingen, Germany
      3. Crop and Horticultural Sciences Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran
    • Dates

       
  • Journal of Genetics | News

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