13 research outputs found
Comparison of single cell culture derived Solanum tuberosum L. plants and a model for their application in breeding programs
The techniques of microspore and protoplast regeneration starting from dihaploid Solanum tuberosum plants has been improved to such an extent that the production of more than 2000 microspore derived A1 plant lines and of several hundred protoplast derived plantlets has become possible. Further, from the dihaploid Solanum species S. phureja the regeneration of microspores to plants, and from the species S. infundibuliforme, S. sparsipilum and S. tarijense the regeneration of protoplasts to calluses, has been achieved. The plants descending from the two single cell culture systems are compared with reference to phenotypic markers and economic qualities. Some principles characteristic for either microspore or protoplast derived plants are examined and their significance is discussed. The results are compiled into an extended analytical synthetic breeding scheme based on a stepwise reduction of the autotetraploid to the monohaploid level and a subsequent controlled combination to a new synthetic completely heterozygous tetraploid potato
Comparison of single cell culture derived Solanum tuberosum L. plants and a model for their application in breeding programs
Solanum phureja: Anther Culture and the Induction of Haploids in a Cultivated Diploid Potato Species
Label-free blood serum detection by using surface-enhanced Raman spectroscopy and support vector machine for the preoperative diagnosis of parotid gland tumors
Effect of GRM7 polymorphisms on the development of noise-induced hearing loss in Chinese Han workers: a nested case-control study
Analysis of correlation between nuclear DNA content, chromosome number, and flowering capacity of asymmetric somatic hybrids of diploid Solanum brevidens and (di)haploid S. tuberosum.
A catalogue of the observations of the mutual phenomena of the Galilean satellites made in 1991 during the PHEMU91 campaign
In this paper, all the light-curves obtained during the PHEMU91
campaign of observations of the mutual phenomena of the Galilean
satellites are presented. These observations give accurate astrometric
positions of major interest for dynamical studies of the motion of the
Galilean satellites. The aim of this work is to give observational
data directly usable for theoretical studies. We made 374 observations
of 111 mutual events from 56 sites. The corresponding data are given in
this paper. The
accuracy of each observation has been deduced from a comparison with the
theoretical predictions. For each
observation, information is given about the telescope, the receptor,
the site and the observational conditions