Genetic diversity of seabuckthorn hippophae rhamnoides l in trans Himalayan ladakh Region, India

Abstract

The Role of Geographical Barrier in Shaping the Regional Population Genetic and Morphometric Structure within Nature Population and Geogrphic Distinctness of Seabuckthorn SBT H rhamnoides L in trans Himalaya was studied Seventeen Populations from two valleys Which are geographically separated by high mountains were collected Genetic and Morphometric diversity of H rhamnoides L was moderate to high with significantly low r2 equal to 01012 or no altitudinal variation among the populations A significant considerable isolation by distance pattered has been observed Model based Bayesian clustering and neighbor joining analysis highlighted the role of high mountain Ladakh range 6500m ams1 as an important geographic barrier for this species in the studied site Two main gene pools, one in Leh valley and other in Nubra valley have been observed Moderate Nei s gene diversity 01559 was recorded with high gene flow 24215 A parallel pattern of Morphometric and genetic diversity was found The Shannon s diversity index for 20 quantitative Morphometric characters was 0859, which indicated high Morphological diversity, Correlation studies between Morphological, altitudinal and Nei s gene diversity suggested a strong relation between characters such as fruit weight, fruit length, number of leafs 10cm2, number of berries 10cm2, fruit color in terms of lightness L and blueness b