Genetic differentiation of black saxaul, Haloxylon aphyllum (Chenopodiaceae), along a soil salinity gradient in the Kyzylkum Desert
E. V. ShuyskayaRussian Academy of SciencesLilya G. GismatullinaIntegrated Research Institute of Regional Problems, Samarkand Branch, Uzbekistan Academy of Sciences, ul. T. Malik 3, Samarkand, 140100, UzbekistanKristina ToderichIntegrated Research Institute of Regional Problems, Samarkand Branch, Uzbekistan Academy of Sciences, ul. T. Malik 3, Samarkand, 140100, UzbekistanP. Yu. VoroninRussian Academy of SciencesNatalia V. SoldatovaDjeiran Ecological Center, Kagan, Bukhara Region, 200700, Uzbekistan
Ochiq kirish: yoʻq
ABI
Annotatsiya
Populations of Haloxylon àphyllum in the Kyzylkum Desert have been found to be markedly deficient in heterozygotes at a medium level of genetic diversity (P 95 = 0.56, A = 1.67, H o = 0.14, H e = 0.28). Spatial genetic differentiation of these populations have been revealed along a soil salinity gradient (from 0 to 0.5 mmol Na+/g), with their genetic diversity reaching a maximum (H o = 0.21–0.25, H e = 0.25–0.27) in areas with a moderate salinity level (0.05–0.1 mmol Na+/g). Locus Got-2 can serve as a marker of this differentiation (FstGot-2 = 0.4).
Hali tarjima qilinmagan