Surinder Singh Banga

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BACKGROUND Leptospirosis, a zoonosis associated with potentially fatal consequences, has long been a grossly underreported disease in India. There is no accurate estimate of the problem of leptospirosis in non-endemic areas such as north India. METHODS/PRINCIPAL FINDINGS In order to understand the clinical spectrum and risk factors associated with(More)
Fixed heterosis resulting from favorable interactions between the genes on their homoeologous genomes in an allopolyploid is considered analogous to classical heterosis accruing from interactions between homologous chromosomes in heterozygous plants of a diploid species. It has been hypothesized that fixed heterosis may be one of the causes of low classical(More)
Derived amphiploidy helped to resynthesize agronomically superior B. juncea germplasm which showed high heterosis in crosses with natural B. juncea . This new procedure facilitates a seamless flow of variation across Brassica digenomics. Brassica digenomics, artificially resynthesized by hybridizing extant genome donor diploids, show poor breeding value due(More)
Normal human diploid fibroblasts have limited life span in culture and undergo replicative senescence after 50-60 population doublings. On the contrary, cancer cells typically divide indefinitely and are immortal. Expression of SV40 large T and small t antigens in human fibroblasts transiently extends their life span by 20-30 population doublings and(More)
Twenty Brassica breeding populations derived from mass selection or inter-specific hybridization were field screened for resistance to three separate isolates of Sclerotinia sclerotiorum, the cause of Sclerotinia stem rot (SSR). Variation due to S. sclerotiorum isolates (P ≤ 0.001) and host populations (P ≤ 0.001) were highly significant. Populations ×(More)
Mustard aphid is a major pest of Brassica oilseeds. No source for aphid resistance is presently available in Brassica juncea . A wild crucifer, Brassica fruticulosa is known to be resistant to mustard aphid. An artificially synthesized amphiploid, AD-4 (B. fruticulosa × B. rapa var. brown sarson) was developed for use as a bridge species to transfer(More)
Backcross substitution of Brassica juncea (2n = 36; AABB) nucleus into the cytoplasm of a wild crucifer, Brassica fruticulosa helped in development of a new cytoplasmic male sterility (CMS) system. Male sterility was complete, stable, and expressed as rudimentary anthers containing sterile pollen grains. There was no impact on other floral as well as(More)
Newly discovered determinate plant growth habit in Brassica juncea is simply inherited and can help in architectural restructuring of Brassica oilseeds. Brassica juncea is naturally indeterminate. This growth habit tends to accentuate intra-plant competition for resources within the plant canopy, leading to unfilled seeds, immature pods and tip sterility.(More)
A recombinant inbred line (RIL) population was developed following hybridization between a low glucosinolate B. juncea genotype, NUDH-YJ-04 and a high glucosinolate cultivar, RL-1359. RILs differed for seed and leaf glucosinolates, total tocopherols and oil content. A linkage map of length covering 2346.9 cM was constructed. It comprised 198 markers(More)
Field and controlled environment studies were undertaken to define the range and extent of available host resistances to Pseudocercosporella capsellae (white leaf spot) across diverse oilseed, forage and vegetable crucifers, including some wild and/or weedy species, and also within and/or derived from Brassica carinata. In each experiment, there was a wide(More)