Flower Genetic Linkage Map Construction and QTL Positioning Research Progress
The construction of genetic linkage map for more than 20 flowers species and further research in some flowers for QTL positioning are undertaken in the past 20 years.The construction of genetic linkage map and QTL positioning are the foundations of gene localization,cloning and genomic structure and function research.High density genetic linkage map and precise QTL positioning will facilitate accelerating progress in flower breeding research.In the present paper,we introduced the genetic linkage map construction theory and method,summarized the flower genetic linkage map construction and QTL positioning research progresses,discussed the existing problems in this research field and gave some proposals for its direction of development and emphasis of research in the future.