{
  "annotation_id": "625b4a8f-1cb8-4724-af3e-29703b8be856",
  "date_created": "2026-03-02T18:01:34.878000Z",
  "date_modified": "2026-03-02T18:01:34.878000Z",
  "file_hash": "a6152ce7b2d11b0126583b64d7b45a5173af15e18990c36f62dca5dda5f56159",
  "private": false,
  "record": {
    "abstract": "We have analysed an effect of the Bak-Sneppen predator-prey food-chain\nself-organization on nucleotide content of evolving species. In our model,\ngenomes of the species under consideration have been represented by their\nnucleotide genomic fraction and we have applied two-parameter Kimura model of\nsubstitutions to include the changes of the fraction in time. The initial\nnucleotide fraction and substitution rates were decided with the help of random\nnumber generator. Deviation of the genomic nucleotide fraction from its\nequilibrium value was playing the role of the fitness parameter, $B$, in\nBak-Sneppen model. Our finding is, that the higher is the value of the\nthreshold fitness, during the evolution course, the more frequent are large\nfluctuations in number of species with strongly differentiated nucleotide\ncontent; and it is more often the case that the oldest species, which survive\nthe food-chain competition, might have specific nucleotide fraction making\npossible generating long genes",
    "arxiv_id": "q-bio/0601039",
    "authors": [
      "Marta Dembska",
      "M. R. Dudek",
      "D. Stauffer"
    ],
    "categories": [
      "q-bio.PE"
    ],
    "doi": "10.1016/j.physa.2006.03.043",
    "title": "Food-chain competition influences gene\u0027s size",
    "url": "https://arxiv.org/abs/q-bio/0601039"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e28ac106-be47-49d6-bdd0-103f1573b48b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}