Development and characterization of Brassica juncea – fruticulosa introgression lines exhibiting resistance to mustard aphid (Lipaphis erysimi Kalt)

@article{Atri2012DevelopmentAC,
  title={Development and characterization of Brassica juncea – fruticulosa introgression lines exhibiting resistance to mustard aphid (Lipaphis erysimi Kalt)},
  author={Chhaya Atri and Bharti Kumar and Hitesh Kumar and Sarwan Kumar and Sanju Sharma and Surinder Singh Banga},
  journal={BMC Genetics},
  year={2012},
  volume={13},
  pages={104 - 104}
}
BackgroundMustard 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 fruticulosa resistance to B. juncea. Using the selfed backcross we could select a large number of lines with resistance to mustard aphid… 
Antixenosis and antibiosis mechanisms of resistance to turnip aphid, Lipaphis erysimi (Kaltenbach) in Brassica juncea-fruticulosa introgression lines
TLDR
Introgression lines developed using Brassica fruticulosa found to be resistant to L. erysimi may be attributed to a synergistic combination of antixenosis and antibiosis mechanisms.
Biochemical changes in the Brassica juncea-fruticulosa introgression lines after Lipaphis erysimi (Kaltenbach) infestation
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A general trend of decline in flavonols, total sugars and free amino acids content was observed after aphid infestation in all the genotypes, and there was downregulation of glucosinolates and upregulation of total phenols as against opposite trend observed in BSH-1 and PBR-210.
Some Cytomorphological Evidence for Synthesis of Interspecific Hybrids between Brassica juncea and Autotetraploid B. fruticulosa
TLDR
The study suggests that B. fruticulosa has partial genome homeology with B. juncea which could be exploited in crop improvement programmes, particularly breeding for biotic stress especially, tolerance/resistance to the mustard aphid.
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TLDR
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Reliable screening technique for evaluation of wild crucifers against mustard aphid Lipaphis erysimi (Kalt.).
TLDR
Wild crucifers, including Brassica fruticulosa, B. spinescens, Camelina sativa, Crambe abysinnica and Lepidium sativum were resistant to mustard aphid L. erysimi with aphid infestation index (AII) ≤ 1 and Capsella bursa-pastoris was highly susceptible to bean aphid, Aphis fabae during its vegetative stage.
Anchoring alien chromosome segment substitutions bearing gene(s) for resistance to mustard aphid in Brassica juncea-B. fruticulosa introgression lines and their possible disruption through gamma irradiation.
TLDR
The patterns of donor chromatin segment substitutions in the introgression lines (ILs) through genomic in situ hybridization (GISH) coupled with B. fruticulosa chromosome-specific oligonucleotide probes were investigated to aid the development of markers to track introgressed DNA and allow application in plant breeding.
Relative Abundance of Turnip Aphid and the Associated Natural Enemies on Oilseed Brassica Genotypes
TLDR
There is a need to conserve the resident natural enemies in mustard ecosystem for effective early season suppression of the aphids population or release them early in the season to suppress aphid population in lag phase of its development.
Population dynamics of potential bioagents of mustard aphid, Lipaphiserysimi(Kaltenbach) on different cultivars of rapeseed-mustard
TLDR
By computing population trends of both natu-ral enemies and aphids with meterological records would generate information on relative abundance and would certainly help in formulating sound pest management strategies against mustard aphid.
Outstanding host resistance will resolve the threat from white leaf spot disease (Pseudocercosporella capsellae) to oilseed and vegetable Brassica spp.crops
TLDR
Field host resistance against the white leaf spot pathogen Pseudocercosporella capsellae was determined across one hundred and seventeen Brassica napus, with commercial cultivars Oscar and Stubby considered to be highly resistant.
Phenotypic evaluation and molecular profiling of Brassica juncea (L.) lines carrying introgressions from Erucastrum abyssinicum
TLDR
Introgression lines (ILs), created in Brassica juncea, following hybridization with Erucastrum abyssinicum were studied to catalogue their genetic diversity and crop performance under stressed ecologies and Morphological evaluation helped to identify useful ILs for earliness and components associated with crop productivity.
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