Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Sapre, A. B.
Right arrow Articles by Deshpande, D. S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Sapre, A. B.
Right arrow Articles by Deshpande, D. S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

The Journal of Heredity 1987:78(6):357-360
© 1987 The American Genetic Association 78:357-360

research-article

Spontaneous emergence of parents from the F1 interspecific hybrids of Coix L.

A. B. Sapre, and D. S. Deshpande

Unit of Cytogenetics, Department of Botany, Marathwada University Aurangabad, 431 004, India

Abstract

Emergence of pure parental plants from F1 Interspecific hybrids of Coix, C. gigantea X aquatica, through genomic segregation and spontaneous backcross is reported. The segregation of parental chromosomes during anaphase I has been noted to occur in such a high frequency as to violate laws of probability that govern random orientation and independent assortment of maternal and paternal chromosomes. Probably some kind of affinity binds chromosomes of the two genomes. The restored parents have been found to resemble original parents in toto, including regular behavior of chromosomes at melosis in spite of the intergenomic pairing in the hybrids. It is suspected that the proximal pairing in gigantea-aquatica bivalents among the hybrids leads either to the exchange of completely homologous segments or there is no exchange at all, so that restored parents are without any structural or genic rearrangement in their chromosomes. Although parental-like phenotypes have been reported to arise among hybrid derivatives, restoration of pure parental plants from F1 hybrids in one step seems to be unique to Coix.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Genome ResHome page
J. Peng, A. B. Korol, T. Fahima, M. S. Röder, Y. I. Ronin, Y. C. Li, and E. Nevo
Molecular Genetic Maps in Wild Emmer Wheat, Triticum dicoccoides: Genome-Wide Coverage, Massive Negative Interference, and Putative Quasi-Linkage
Genome Res., October 1, 2000; 10(10): 1509 - 1531.
[Abstract] [Full Text]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.