Development of Novel Brassica napus lines with canola quality and higher levels of oleic and linoleic acids derived from intergeneric hybrids between B. napus and Orychophragmus violaceus |
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Authors: | Ni Ma Zai-yun Li |
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Institution: | (1) Agricultural and Natural Resources Research Center, Shahrekord, Chaharmahal and Bakhtiari, Iran;(2) Department of Entomology, University of Agricultural Science, Bangalore, India;(3) Department of Genetics and Plant Breeding, University of Agricultural Science, Bangalore, India |
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Abstract: | Parents and their F1 and F2 progenies were evaluated for density of type IV glandular trichomes and resistance to Tetranychus urticae Koch during three stages of the plant growth. Results indicated significant differences between density of type IV glandular
trichomes on F1 and F2 populations at different sampling times. As age of plant increased, density of type IV glandular trichomes and resistance
to two-spotted spider mite increased. Density of type IV glandular trichomes on F2 individuals showed a broad range of variability (0–42 trichomes/mm2). The estimated heritability was very high (>85%) for damage score and density of type IV glandular trichomes at different
sampling times. Acylsugars content in Lycopersicon pennellii ‘‘LA2963’’ was more than two-folds high than those found in L. esculentum ‘‘Nandi’’, F1 and F2 populations, indicating that recessive gene(s) are responsible for the high acylsugar contents in L. pennellii ‘‘LA2963’’. |
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Keywords: | Glandular trichomes Inheritance Lycopersicon Spider mite |
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