Blog
About

0
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      The holist tradition in twentieth century genetics. Wilhelm Johannsen's genotype concept.

      1

      The Journal of physiology

      Wiley

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The terms 'genotype', 'phenotype' and 'gene' originally had a different meaning from that in the Modern Synthesis. These terms were coined in the first decade of the twentieth century by the Danish plant physiologist Wilhelm Johannsen. His bean selection experiment and his theoretical analysis of the difference between genotype and phenotype were important inputs to the formation of genetics as a well-defined special discipline. This paper shows how Johannsen's holistic genotype theory provided a platform for criticism of narrowly genocentric versions of the chromosome theory of heredity that came to dominate genetics in the middle decades of the twentieth century. Johannsen came to recognize the epoch-making importance of the work done by the Drosophila group, but he continued to insist on the incompleteness of the chromosome theory. Genes of the kind that they mapped on the chromosomes could only give a partial explanation of biological heredity and evolution.

          Related collections

          Author and article information

          Journal
          J. Physiol. (Lond.)
          The Journal of physiology
          Wiley
          1469-7793
          0022-3751
          Jun 01 2014
          : 592
          : 11
          Affiliations
          [1 ] Professor emeritus Nils Diderik Roll-Hansen University of Oslo Department of philosophy, history of art and Nydalen Alle 5, apt. 111, Oslo, 0484, Norway nils.roll-hansen@ifikk.uio.no.
          Article
          592/11/2431
          10.1113/jphysiol.2014.272120
          4048101
          24882823

          Comments

          Comment on this article