fixation index中文什么意思

固定指数,固视指数

• fixation:    n. 1.固定；凝固。 2.凝视。 ...
• index:    n. (pl. -es, -dice ...
• ocular fixation index:    眼凝视指数,眼固视指数

例句与用法

1. Hardy - weinberg equilibrium test , the frequency of expected and observed heterozygosity and chi - square ( x2 ) test of fixation index
   3 )用x居群的50个个体进行空间自相关分析。
2. The average number of alleles per locus ( a ) , percentage polymorphic loci ( p ) , observed heterozygosity ( ho ) and wright ' s fixation index ( f ) is 2 . 2 , 77 . 9 , 0 . 433 , - 0 . 138 , respectively . the species also had higher variation than that of the other woody angiosperms widespread . moreover , e . mollis has higher population genetic variation than that of 26 long - lived woody endemics with narrow geographic distributions
   Biosys - 2软件计算得知，在翅果油树种群中，每个位点等位基因的平均数a = 2 . 2 ，多态位点百分率p = 77 . 9 ，遗传多样性he = 0 . 375 ，遗传多样性水平明显高于蜂媒植物，而且也比其它的广布木本被子植物的遗传多样性水平为高。

百科释义

The fixation index (FST) is a measure of population differentiation due to genetic structure. It is frequently estimated from genetic polymorphism data, such as single-nucleotide polymorphisms (SNP) or microsatellites.