首页|Genetic Variation of Populations of Scutellaria slametensisand S. discolor (Lamiaceae) on Gunung Slamet,Jawa Tengah (Indonesia)
Genetic Variation of Populations of Scutellaria slametensisand S. discolor (Lamiaceae) on Gunung Slamet,Jawa Tengah (Indonesia)
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Genetic variation within and between populations of Scutellaria slametensis Sudarmono & B.J.Conn and S. discolor Colebr. on Gunung Slamet (Jawa Tengah, Indonesia) are evaluated by allozyme electrophoresis. Gels stained by 4 enzyme systems, namely, Aspartate aminotransferase (Aat), Esterase (Est), Malate dehydrogenase (Mdh) and Peroxidase (Per), were used to evaluate the number of polymorphic loci. The mean of total number of observed alleles per locus (A), mean of total number of effective alleles per locus (Ae), percentage of polymorphic loci (Pp%), and expected genetic heterozygosity (He) have been generated as parameters of genetic variation. The interpopulation genetic differentiation (FsT) and estimated geographic distance between populations were used to evaluate the correlation between genetic differentiation and geographic effect. It was found that S. slametensis is genetically distinct from S. discolor (D = 1.4572). The mean genetic variation of S. slametensis (Pp = 75 , A = 2.00, HE = 0.450) is greater than that of S. discolor (Pp = 25 %, A = 1.25, HE = 0.125). Almost all loci of the latter species are monomorphic and homozygotic, especially population 9 near Baturaden (Pp = 0%; HE = 0; Allele frequencies all = 1). There is a moderately high degree of variation between populations of these two species (FsT = 0.585, SE 0.092), whereas within-population variation is low (1–FsT = 0.415). Both species are out-breeding (at subpopulation level: Frs = -0.973, SE ± 0.015; and population level: FIT = 0.180, SE 0.183), with low levels of gene flow within and between populations (N. = 0.249, SE 0.065). The chromosome number of S. slametensis and S. discolor is 2n = 24.
specimensAnnonaceaePolyalthia
I.M. TURNER
展开 >
Research Associate, Singapore Botanic Gardens, andRoyal Botanic Gardens, Kew
NSTL
