02454nas a2200265   4500008004100000022001400041245010500055210006900160260007400229300001400303490000800317520151000325653002601835653002201861653000901883653001601892653002201908100002401930700001601954700002601970700002401996700002002020700002102040856012702061       2014                        eng d  a0378-269700aEvaluation of genetic variability in Symplocos laurina Wall. from two biodiversity hotspots of India0 aEvaluation of genetic variability in Symplocos laurina Wall from  aSACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIAbSPRINGER WIENcDEC  a2239-22470 v3003 a<p>Symplocos laurina Wall., an important medicinal tree species, is one of the pioneering plants for establishment of shola forest ecosystem. We analyzed 208 accessions of S. laurina from 13 populations belonging to three ecoregions in India namely, Western Ghats, Eastern Ghats and Northeast India, to comment on the genetic diversity and population structure of the species. Of the 100 inter simple sequence repeat primers screened, eight were selected based on their clear and reproducible polymorphic patterns. These eight ISSR primers produced on an average 1,014 bands from 208 accessions, of which 6.58 % were rare bands, 55.96 % were shared bands and 37.46 % were similar bands. The primers, UBC835 and UBC880, amplified the highest number of polymorphic loci (16), while the primer UBC852 amplified the least number of amplicons (9). The values for total genetic diversity (H-T) and the average heterozygosity (H-S) were 0.3407 and 0.2263, respectively; while the coefficient of genetic differentiation (G(ST)) was 0.3358. Within-population variance was higher (68 %) than among-population variance (17 %), indicating high intra-population genetic diversity. These populations were grouped according to their geographical location in cluster analysis. Mantel test also showed significant positive correlation between genetic and geographical distances. The present study revealed the importance of the Palghat gap in South India in shaping the distribution of genetic diversity in S. laurina.</p>10aBiodiversity hotspots10aGenetic diversity10aISSR10aPalghat gap10aSymplocos laurina1 aBhagwat, Rasika, M.1 aBanu, Sofia1 aDholakia, Bhushan, B.1 aKadoo, Narendra, Y.1 aLagu, Meena, D.1 aGupta, Vidya, S.  uhttps://library.ncl.res.in/content/evaluation-genetic-variability-symplocos-laurina-wall-two-biodiversity-hotspots-india-002332nas a2200217   4500008004100000022001400041245010100055210006900156260000800225300001000233490000700243520161900250653002101869653000901890653002001899653000901919100001901928700002101947700002001968856012601988       2019                        eng d  a0972-853800aRobust micropropagation protocol for genetically true to type plants of Phule Arakta pomegranate0 aRobust micropropagation protocol for genetically true to type pl  cMAR  a23-310 v763 a<p>A rapid and reproducible micropropagation protocol for pomegranate cv. Phule Arakta has been developed using nodal segments of field grown plant. Bud break was induced in basal Woody Plant Medium (WPM) as well as compared when WPM was supplemented with plant growth regulators. Multiple shoot proliferation was induced in the nodal segments on WPM fortified with different concentration of benzyladenine (BAP) where 2mg/I BAP developed maximum number of shoots. Elongation of shoots was further amplified with the addition of adjuvant silver nitrate. Browning of culture medium was controlled by the addition of polyvinylpyrrolidone (PVP) and regular sub-culturing enhanced shoot multiplication as well as elongation. Rooting was induced in the regenerated shoots using Indole-3-butyric acid (IBA) and 3-Indoleacetic acid where best result was obtained using shock treatment with NAA. Sub-culturing resulted in denser and better rooting. The rooted plantlets were further acclimatized and then established in soil. The clonal fidelity of the in vitro grown cultures was assessed using Random Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeats (ISSR) markers. The 10 RAPD decamers produced 55 bands and 4 ISSR produced 19 bands in total. RAPD primers OPC-08, OPC-13 and OPD-07 produced the highest number of distinct bands and ISSR primer UBC-834 produced maximum distinct bands. All the bands were monomorphic which confirms the genetic fidelity of the in-vitro raised P. granatum cv. Phule Arakta and supported the method of mass production of true to type progenies using tissue culture.</p>
10agenetic fidelity10aISSR10aPunica granatum10aRAPD1 aRaman, Taramla1 aGupta, Vidya, S.1 aShukla, Susmita  uhttps://library.ncl.res.in/content/robust-micropropagation-protocol-genetically-true-type-plants-phule-arakta-pomegranate