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Can I read Structural hybridity in the series Etuberosa of the genus Solanum and its bearing on crossability on EtoBox?
Structural hybridity in the series Etuberosa of the genus Solanum and its bearing on crossability by M. S. Ramanna; J. G. T H Hermsen is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Structural hybridity in the series Etuberosa of the genus Solanum and its bearing on crossability about?
Three non-tuberous Solanum species of series Etuberosa -S . brevidens (brd), S . etuberosum (etb) and S. fernandezianum (frn) -upon selling displayed compatible berry set but seed set varied and on an average was below normal. Also in crosses between species berry set was unhampered (apart from the crosses with shortstyled frn as pollen plant), but the interspecific hybrid plants showed various degrees of sterility and a low average seed set upon selling . Cytological investigations revealed that in pure species-plants semi-sterility regularly occurred and was invariably associated with multivalent associations (up to decavalents) . This may account for the decreased seed set found after selling and intercrossing . Meiosis in F 1 -hybrids was even more irregular, 75 % of the pmc's showing multivalents involving from 4 to as many as 22 chromosomes in various complicated configurations in which even numbers of chromosomes were predominant . However, anaphase I separation was numerically balanced in more than 75 % of the cells . Pollen stainability was very low in the hybrids . It is concluded that heterozygous translocations occur within each species and that the genomes of the speci
Who reads Structural hybridity in the series Etuberosa of the genus Solanum and its bearing on crossability?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- M. S. Ramanna; J. G. T H Hermsen
- Publisher
- Springer; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0014-2336)
- Published
- 1981
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)