Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

In vitro versus in vivo genetic divergence in potato

  • 46 Accesses

  • 5 Citations

Abstract

 The objective of this study was to compare the genetic divergence pattern in potato (Solanum tuberosum L.) under in vitro and in vivo conditions. Twenty two potato genotypes were evaluated for ten morphological characters under four in vitro conditions, and for 20 characters under four in vivo seasons. Mahalanobis’ generalized intra- and inter-group genetic distances, and the distribution of genotypes into different clusters, led to the same conclusions under both in vitro and in vivo conditions: (1) genetic diversity was not related to geographic diversity, (2) genetic distances were higher between Tuberosum and Andigena than within Tuberosum and Andigena, and (3) present-day Indian varieties have more resemblance to Tuberosum than to the Andigena group. The in vitro approach was more effective than the in vivo approach for differentiating the genotypes per se, although its effectiveness for cross prediction is known to be low.

This is a preview of subscription content, log in to check access.

Author information

Additional information

Received: 15 September 1997 / Accepted: 15 July 1998

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Gopal, J. In vitro versus in vivo genetic divergence in potato. Theor Appl Genet 98, 299–304 (1999). https://doi.org/10.1007/s001220051072

Download citation

  • Key words Genetic divergence
  • Mahalanobis D2 statistic
  • In vitro
  • In vivo
  • Solanumtuberosum
  • Potato