Comparative genome research between maize and rice using genomic in situ hybridization  

作　　者：Shunbin Ning Weiwei Jin Ling Wang Yi Ding Yunchun Song 

机构地区：[1]Wuhan Univ, Key Lab MOE Plant, Wuhan 430072, Peoples R China

出　　处：《Chinese Science Bulletin》2001年第8期656-658,706,共4页

基　　金：the National NaturalScience Foundation of China (Grant No. 39870423) and the Doctorate Spot Fund of the Ministry of Education (Grant No. 207980112).

摘　　要：Using the genomic DNAs of maize and rice as probes respectively, the homology of maize and rice genomes was assessed by genomic in situ hybridization. When rice genomic DNAs were hybridized to maize, all chromosomes displayed many multiple discrete regions, while each rice chromosome delineated a single consecutive chromosomal region after they were hybridized with maize genomic DNAs. The results indicate that the genomes of maize and rice share high homology, and confirm the proposal that maize and rice are diverged from a common ancestor.Using the genomic DNAs of maize and rice as probes respectively, the homology of maize and rice genomes was assessed by genomicin situ hybridization. When rice genomic DNAs were hybridized to maize, all chromosomes displayed many multiple discrete regions, while each rice chromosome delineated a single consecutive chromosomal region after they were hybridized with maize genomic DNAs. The results indicate that the genomes of maize and rice share high homology, and confirm the proposal that maize and rice are diverged from a common ancestor.

关 键 词：MAIZE RICE genome HOMOLOGY COMPARATIVE CYTOGENETICS genomic in SITU hybridization. 

分 类 号：S513[农业科学—作物学]