Population structure and pattern of geographic variation inMuscari comosumalong its range of distribution

✍ Scribed by D. fnLópez Alonso; L. Pascual Reguera

• Book ID: 104625397
• Publisher: Springer Netherlands
• Year: 1986
• Tongue: English
• Weight: 852 KB
• Volume: 78
• Category: Article
• ISSN: 0016-6707
• DOI: 10.1007/bf00058673

✦ Synopsis

Genetic variation for six loci in 37 populations of Muscari comosum L. (Liliaceae) is surveyed. One locus is monomorphic and identical in all the populations. The remaining loci are polymorphic. Although the GOT-1 and GOT-3 loci show a pronounced heterozygote deficit explained by selection acting upon these loci (or on genes linked to them), the remaining loci nearly conform to Hardy-Weinberg proportions. The overall pattern shows a low level of heterozygote deficit (Fis = 0.08) explained by the mixed mating system. The organization of genetic variation shows a low level of interpopulation differentiation (FsT or GsT = 0.04). At the same time, autocorrelation analysis shows no pattern of geographical variation. It is concluded that gene flow and selection interact to produce the overall pattern of genetic variation.