Genetic Structure of Indian Valerian (Valeriana jatamansi) Populations in Western Himalaya Revealed by AFLP

Abstract

Valeriana jatamansi Jones is a natural tetraploid species indigenous to the Indian Himalaya. To assess its genetic diversity and population structure, we analyzed six natural populations from the western Himalayan region using amplified fragment length polymorphism. An analysis of molecular variance found that 93% of the genetic variation of V. jatamansi was within populations and 7% among populations. The correlation between genetic and geographic distances (r = 0.14) was not significant. Though the populations are well separated, the lack of distinct genetic variation between populations may be due to either recent rapid fragmentation from a wide and continuous area resulting in genetically similar populations or wide dispersal of seed by wind, since the follicles are feathery. Polyploidy may be the reason for the lack of genetic impoverishment due to fragmentation.

Essential oil composition and antioxidant activity in Valeriana jatamansi Jones: influence of seasons and growing sources

“…Moreover, location-specific variation in essential oil constituents showed great variation in its components like patchouli alcohol, α-bulnesene, α-guaiene, guaiol, seychellene, viridiflorol, etc. (9,18 (18,(22)(23)(24). Therefore, present report attempts to (i) analyze variation in essential oil composition of V. jatamansi in different seasons and different growing conditions, and (ii) evaluate antioxidant activity of the essential oil by DPPH assay.…”

PICcalc: An Online Program to Calculate Polymorphic Information Content for Molecular Genetic Studies

“…Marker systems differ in their information content, which depends on polymorphism. The concept of polymorphism is used to define genetic variation in a population, which has been extensively studied in recent years by several established scientific disciplines, for example, genetics, ecology, zoology, and microbiology (Mukherjee et al 2010;Muneer et al 2011;Rajkumar et al 2011). Examples are numerous and obvious.…”

Genomic profile of the plants with pharmaceutical value

“… Diagnostic marker for endive and chicory Kiers et al ( 2000 ) Azadirachta indica Clonal fidelity in tissue culture raised plants Singh et al ( 2002 ) Actaea racemosa L. Identification and discrimination from three other closely related sympatric species Zerega et al ( 2002 ) Papaver (section Oxytona), in vitro cell lines of P. bracteatum Assessment species differentiation and genetic variability of in vitro-cultured plantlets Carolan et al ( 2002 ) Azadirachta indica A. Juss. Establishing clonal fidelity of tissue culture-raised plants Singh et al ( 2002 ) Solanum nigrum complex Assessment of genetic relationship between 14 genotypes of black nightshade Jacoby et al ( 2003 ) Echinacea purpurea Genetic mapping of via DNA fingerprinting of individual pollen Aziz and Sauve ( 2008 ) Taxus wallichiana Assessment of genetic variation in nine natural populations from western part of the Himalayan ranges Mohapatra et al ( 2009 ) Carthamus tinctorius Inheritance and molecular marker analyses for HSYA trait Zhang et al ( 2009 ) Echinacea tennesseensis (Beadle) Small Phenotypic analyses during in vitro multiplication, storage, and acclimatization into soil Moraes et al ( 2011 ) Valeriana jatamansi Jones Assessment of genetic diversity and population structure in Western Himalaya, India Rajkumar et al ( 2011 ) …”