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Construction of a genetic linkage map of cigar tobacco (Nicotiana tabacum L.) based on SSR markers and comparative studies

Author

Listed:
  • Zhijun TONG

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

  • Bingguang XIAO
  • Xuejun CHEN

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

  • Dunhuang FANG

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

  • Yihan ZHANG

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

  • Changjun HUANG

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

  • Yongping LI

    (Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China)

Abstract

Genetic linkage maps representing the tobacco genome have been an important tool for breeding programs because of the elucidation of polygenic traits. We constructed a genetic linkage map of cigar tobacco (Nicotiana tabacum L.) based on an inter-type backcross population of 213 individuals and performed a comparative analysis with other published maps of dark tobacco and flue-cured tobacco. The map consisted of 562 SSR loci distributed on 24 tentative linkage groups and spanned a total length of 1341.18 cM with an average distance of 2.39 cM between adjacent markers. The comparative analysis revealed a Spearman correlation index of 0.93 for marker order conservation with the previously published maps constructed for different tobacco types. Approximately 91% of the SSR markers common to other inter-type maps were located in the same positions as in previous maps. The three maps exhibit good synteny in terms of the shared markers, which suggests that there might be no translocation variations between the genomes of the cigar, dark and flue-cured tobaccos. These results indicate the feasibility of generating a unique genetic map of preferred traits in cigar tobacco and that such mapping may be helpful for breeding programs because plants derived from different inter-type populations can be rapidly scanned using the markers associated with useful cigar traits

Suggested Citation

  • Zhijun TONG & Bingguang XIAO & Xuejun CHEN & Dunhuang FANG & Yihan ZHANG & Changjun HUANG & Yongping LI, 2018. "Construction of a genetic linkage map of cigar tobacco (Nicotiana tabacum L.) based on SSR markers and comparative studies," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 54(3), pages 115-122.
    • Handle: RePEc:caa:jnlcjg:v:54:y:2018:i:3:id:121-2017-cjgpb
    DOI: 10.17221/121/2017-CJGPB
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    References listed on IDEAS

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    1. Nicolas Sierro & James N.D. Battey & Sonia Ouadi & Nicolas Bakaher & Lucien Bovet & Adrian Willig & Simon Goepfert & Manuel C. Peitsch & Nikolai V. Ivanov, 2014. "The tobacco genome sequence and its comparison with those of tomato and potato," Nature Communications, Nature, vol. 5(1), pages 1-9, September.
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