Recent advances in research on the genetic linkage maps in pears

Abstract：The construction of pear genetic linkage maps is an important field in research on pear genome, and is also a basis for location and clone of pear genes and MAS of pear.Sofar twenty-six pear genetic linkage maps have been constructed in both home and abroad, and the QTL locations have been accomplished including leaf traits, growth trait, skin color, hardness of fruit, fruit shape index, resistance to scabdisease, fire-blight and pear psylla, etc..In the paper, the present situation and application of research on constructing pear genetic linkage maps are summarized, which will provide reference for a higher density pear genetic map and MAS in pear breeding.