tag:blogger.com,1999:blog-47802266767087459482012-01-20T14:57:17.238+05:30Jawaharlal Nehru Tropical Botanic Garden & Research Institute (JNTBGRI)Sabuhttp://www.blogger.com/profile/08478597650715236084noreply@blogger.comBlogger161100tag:blogger.com,1999:blog-4780226676708745948.post-25781723145675299902012-01-20T11:41:00.000+05:302012-01-20T11:41:33.186+05:30

Ratnam Wickneswari, M. A. R. Bhuiyan, Sabu Kalluvettankuzhy K., Li Sze Lim, Michael J. Thomson, Md. Kairudin Narimah and Md. Zain Abdullah Abstract  A backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with 14 traits in a BC2F2 population derived from a cross between MR219, an indica rice cultivar and an accession of Oryza rufipogon (IRGC 105491). A total

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A DNA barcode is a DNA sequence that uniquely identifies each species of living thing. Dr. Mark Stoeckle from The Rockefeller University talks about the history of DNA barcoding, from the first paper published in 2003 to the international consortium of researchers that exists today. DNA barcoding is a taxonomic method that uses a short genetic marker in an organism's DNA to identify it as

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Project: Genetic studies on selected rattan palms (Calamus sp.) using microsatellite markers Essential qualification: First class M.Sc. in Botany/Biotechnology Desirable qualification: Research experience in Plant Molecular Biology The last date prescribed was 11th April 2011 [Closed]. Please email your CV for information about conducting MSc Projects/Dissertations and PhD programmes.  

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Natural variation is essential for conservation and utilization of plant genetic resources. Human interference on forests may cause depletion of natural genetic variation in the gene pool and even to genetic erosion of certain species. Rattans are one such species currently under crisis due to over-exploitation. They represent high value non-wood forest produce primarily used for making furniture

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Bambusetum in Tropical Botanic Garden & Research Institute (TBGRI) has 660 accessions of Bamboos belonging to 60 species spread across 12 hectares of land area. The collection includes species mainly from the Western Ghats, north-eastern region of India, South East Asia and a few cultivated ones.  Inter-single sequence repeat (ISSR) markers were used as a tool to analyze natural genetic

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Genetic Structure of Oryza rufipogon Griff. Natural Populations in Malaysia: Implications for Conservation and Genetic Introgression of Cultivated RiceAbstract Thirty polymorphic Oryza sativa microsatellite loci (SSRs) were used to study population genetic structure of O. rufipogon Griff. natural populations in Malaysia. A total of 445 alleles were detected with an average of 14.8 alleles per

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ABSTRACT Wild relatives of crop species may contain trait-enhancing genes. Our studies showed that grain yield in cultivated rice can be increased significantly using the genes found in common wild rice. Advanced backcross progenies (Oryza rufipogon IRGC105491 x O. sativa cv. MR219) exhibited higher values for most of the yield and yield-related traits analyzed in comparison to the cultivated

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Analysis of heritability and genetic variability of agronomically important traits in Oryza sativa x O. rufipogon crossAbstractHeritability is a measure of possible genetic advancement under selection. Estimation of variance components could imply partitioning of genetic variability over different sources of variation. This article describes statistical methods applied and some of the

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AbstractHeritability is a measure of possible genetic advancement under selection. Estimation of variance components could imply partitioning of genetic variability over different sources of variation. This article describes statistical methods applied and some of the observations made on results of heritability and genetic variance analysis of rice yield and related traits of progenies derived

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ABSTRACT This research was conducted to identify possible trait enhancing quantitative trait loci (QTLs) from common wild rice, Oryza rufipogon. Two hundred and sixty-six BC2F2 families were developed from an interspecific cross between O. rufipogon accession no. IRGC 105491 and O. sativa cv. ‘MR219’during 2002-2003. Field evaluation of the BC2F2 families for 18 yield and yield related traits was

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APPLICATION OF MOLECULAR MARKERS FOR THE ANALYSIS OF GENETIC DIVERSITY AND SYSTEMATICSAbstractAnalysis of genetic diversity is carried out using a variety of tools and techniques, however due to its accuracy, the use of molecular markers find much popularity. Such studies often hold diverse applications in the fields of utilisation of genetic resources, molecular taxonomy and conservation of

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Abstract: RAPD analysis was done to determine intraspecific variability in Andrographis paniculata, a popular antipyretic and hepatoprotective drug used in traditional medicine in India. The accessions collected from parts of India and southeast Asia on molecular analysis revealed moderate variation within the species. Similarity measurement using UPGMA followed by cluster analysis resulted in 5

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AbstractGermplasm collection of Andrographis paniculata Nees (Kalmegh), a medicinal herb endowed with curative properties against a variety of ailments, was carried out from various parts of south Asia. The germplasm was reared in a field plot under identical conditions and then seeds were collected and used for the present study. Seed progenies of 15 accessions were analysed at 15 loci

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AbstractFifteen populations of Phyllanthus amarus from different parts of southern India were subjected to assessment of genetic diversity using isozymes. Analyses include electrophoretic separation of isozymes, scoring of active loci and genetic data analysis using POPGENE®. The six isozymes scored for a total of 14 loci with an overall polymorphism of 48.57%. Mean observed number of alleles was

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It is needless to say that variety is the spice of life, Nature has myriads of life forms on this planet among which variations are of ubiquitous occurrence. It is particularly so in the megacentres of diversity in the tropics which harbor approximately two-third of the biota and where many species of economic importance presumably had their origin. As a matter of fact, variations between

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Abstract: For the biodiversity- rich developing countries in the tropics, chemical and genetic prospecting of their plant genetic resources is a priority area not only to fish out genotypes/molecules of potential economic importance but also to add value to them. The present study essentially directed towards this objective, involves analysis of intraspecific variations in Andrographis paniculata

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