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Sunn hemp Marker Database
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Sunn hemp (Crotalaria juncea L.) is a tropical Asian plant from the Fabaceae family known to have originated from India. It is generally used as a green manure crop, but also has a huge economic value due to its ligno-cellulosic bast fibre obtained from its stem. Sunn hemp fibre is finer and stronger than jute and mesta, but coarser than cotton and flax. The fibre is mostly used in the textile industries in making sacks, ropes, fishing nets, cordage, canvas, rug yarn, etc., and in the paper and pulp industries. Besides, the foliage of sunn hemp is being considered as a possible source for biofuel conversion. Sunn hemp reproductive behaviour is governed by a late-acting self incompatibility resulting in highly cross-pollination dependent seed production. The plant populations are thus genetically heterozygous and genetic improvement through breeding is difficult due to the impossibility of maintaining genetically homogenous parental populations. Furthermore, molecular markers for characterisation of sunn hemp germplasm and populations are not available due to an absence of genetic and genomic resources. We have mined a large number of molecular markers such as expressed sequence tagged-simple sequence repeat (EST-SSRs), intron-length polymorphism markers, and putative single nucleotide polymorphism (SNP) markers, including the 'InDel' markers, using the only transcriptome resource developed by us in sunn hemp. There are 1683 non-redundant EST-SSR primers, 4759 potential intron-length polymorphism (PIP) primers, and 3309 Kompetetive Allele Specific PCR (KASP) primers in this database. This database is thus a valuable resource for plant breeders and geneticists interested in genetic diversity, genetic improvement, and, more intriguingly, the biology of late-acting self-incompatibility.Important links
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ICAR
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ICAR-CRIJAF
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NCBI
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HomeEST-SSR primersPIP-primersSNP/InDel (KASP) primersFeedback form
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Database owned by Dr. Dipnarayan Saha, Principal Scientist, ICAR-Central Research Institute for Jute and Allied Fibres, Kolkata, India
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