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Sökning: WFRF:(Lander Eric S.) > (2003-2004)

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1.
  • Jaffe, David B., et al. (författare)
  • Whole-Genome Sequence Assembly for Mammalian Genomes: Arachne 2
  • 2003
  • Ingår i: Genome Research. - : Cold Spring Harbor Laboratory. - 1088-9051 .- 1549-5469. ; 13:1, s. 91-96
  • Tidskriftsartikel (refereegranskat)abstract
    • We previously described the whole-genome assembly program Arachne, presenting assemblies of simulated data for small to mid-sized genomes. Here we describe algorithmic adaptations to the program, allowing for assembly of mammalian-size genomes, and also improving the assembly of smaller genomes. Three principal changes were simultaneously made and applied to the assembly of the mouse genome, during a six-month period of development: (1) Supercontigs (scaffolds) were iteratively broken and rejoined using several criteria, yielding a 64-fold increase in length (N50), and apparent elimination of all global misjoins; (2) gaps between contigs in supercontigs were filled (partially or completely) by insertion of reads, as suggested by pairing within the supercontig, increasing the N50 contig length by 50%; (3) memory usage was reduced fourfold. The outcome of this mouse assembly and its analysis are described in (Mouse Genome Sequencing Consortium 2002).
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2.
  • Moralejo, Daniel H, et al. (författare)
  • Genetic dissection of lymphopenia from autoimmunity by introgression of mutated Ian5 gene onto the F344 rat.
  • 2003
  • Ingår i: Journal of Autoimmunity. - 0896-8411. ; 21:4, s. 315-324
  • Tidskriftsartikel (refereegranskat)abstract
    • Peripheral T cell lymphopenia (lyp) in the BioBreeding (BB) rat is linked to a frameshift mutation in Ian5, a member of the Immune Associated Nucleotide (Ian) gene family on rat chromosome 4. This lymphopenia leads to type 1 (insulin-dependent) diabetes mellitus (T1DM) at rates up to 100% when combined with the BB rat MHC RT1 u/u genotype. In order, to better study the lymphopenia phenotype without possible confounding effects of diabetes or other autoimmune disease, we generated congenic F344.lyp rats by introgression of lyp on diabetes-resistant MHC RT1 lv1/lv1 F344 rats. Analysis of thymic CD4 and CD8 T lymphocytes revealed no difference in the percentage of CD4(-)CD8(+)and CD4(+)CD8(-)subsets in lyp/lyp compared to +/+ F344 rats. The same subsets was however dramatically reduced in blood (P=0.005), spleen (P=0.019) and mesenteric lymph nodes (MLN) (P<0.0001). Compared to F344 +/+ rats double positive CD4(+)CD8(+)T cells were increased only in lyp/lyp spleen (P=0.034) while double n
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