位点数目 meaning in English
number of loci
Examples
- The number of major 18s rdna sites is generally much more than that in angiosperms and varies markedly among pines . there are seven pairs of 18s sites in pinus tabulaeformis , five in p . desata , eight in p . yunnanensis , 10 in p . massoniana , six in p . latteri , three in p . bungeana , and ten for p . armandi
其中主要位点数目，油松有7对，高山松5对，云南松8对，马尾松10对，南亚松6对，白皮松3对，华山松10对，平均在7对；另外，部分松树还存在弱位点。 - Furthermore , weak signals are found on the centromeres of many chromosomes . unlike 18s , pines have 1 - 2 pairs of 5s rdna sites , except for p . armandi that has four pairs . each pine could be discriminated by its rdna fish karyotype , although most of these pines cannot be distinguished by traditional karyotype analysis
除了华山松ssd3na有旱对位点，马尾松只有1对位点外，其它松树的ssrizna位点数目均为2对， 、并且在双维管柬亚属植物中有一对属于弱位点。 - The analyses of these three types of data in the hybrid and its parents could provide new information on genomic composition and evolutionary mechanisms of the hybrid . the main results are the followings : 1 . rdna fish chromosomal localization of 18s and 5s rdna was carried out for two soft pines ( subgenus strobus ) and five hard pines ( subgenus pinus ) using fish
Rdna荧光原位杂交( fish )通过对华山松和白皮松两种单维管束亚属植物及油松、云南松、高山松、马尾松和南亚松等五种双维管束亚属植物的18srdna与5srdna的荧光原位杂交，结果表明： ( 1 )裸子植物的18srdna位点数目明显多于二倍体被子植物。