Comparative Analysis of Genetic Laws of Maize DH,RIL and BC Populations Based on HTP Markers
In this study,HTP markers were used to analysis the genetic laws of Xianyu335 DH population,Ye107×Chang7-2 RIL population and Jing724×Jing 92 population,and Jing724×Jing 92 BC1 population from three perspectives:genotype segregation ratio,parental genetic fragmentation,and recombination exchange.The reesults showed that the average exchange frequency of DH population is lower than that of the RIL population,and no het-erozygous and exogenous fragments.The average parental genetic fragment length is 384 HTP higher than RIL popu-lation,and it has the highest number of recombination exchanges in a single generation.Compared to BC 1 and RIL-population the DH has more advantages in terms of population characteristics and creation costs.
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