Biotechnology Bulletin ›› 2021, Vol. 37 ›› Issue (1): 246-254.doi: 10.13560/j.cnki.biotech.bull.1985.2020-1008

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Research Progress on High-density Genetic Linkage Map Construction of Important Ornamental Plants:a Review

GUO Li-li(), LI Yu-ying, GUO Da-long, HOU Xiao-gai()   

  1. College of Agriculture/Tree Peony,Henan University of Science and Technology,Luoyang 471023
  • Received:2020-08-10 Online:2021-01-26 Published:2021-01-15
  • Contact: HOU Xiao-gai E-mail:guolili@haust.edu.cn;hkdhxg@haust.edu.cn

Abstract:

Genetic linkage map is a linear arrangement of the relative positions of the sites in the chromosome or genome based on the recombination frequency between genetic markers. The construction of high-density genetic map may allow the integration of physical map and genetic map feasible and plays an important role in promoting gene map cloning. The utilization of genetic map can effectively improve breeding efficiency and varieties. The precision of the high genetic map of important flowers have not yet reached the level of fine mapping;moreover,few studies on the high-density genetic map construction of important flowers such as Lilium brownii,Crataegus pinnatifida,Tulipa gesneriana and Helianthus annuus have been conducted,which limits the molecular breeding research progress of flower plant. Here the construction process and drawing method of genetic map are summarized. Then the research progress of genetic map construction of important flowers such as Paeonia suffruticosa,Prunus mume,Rosa rugosa,Dendranthema morifolium,Cymbidium,Nelumbo,Osmanthus are also reviewed. Furthermore the existing major issues in the construction of high density genetic map of important flower plants are discussed. At last,the development direction of the genetic map construction of important flower plants is prospected. This review might shed a light on providing a reference for studying gene mapping,auxiliary genome assembly,comparative genomics,gene cloning and molecular marker assisted breeding of flowers plants.

Key words: important flower plants, high density genetic map, single nucleotide polymorphism, reduced representation sequencing