Burson, B.L. and Bennett, H.W. (1972) Genome relations between an intraspecific Paspalum dilatatum hybrid and two diploid Paspalum species. Canadian Journal of Genetics and Cytology, 14 (3). pp. 609-613.
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Abstract
A stable intraspecific hybrid within P. dilatatum (2n = 45), produced from a cross between yellow-anthered (2n = 40) and common (2n = 50) strains, was used to produce hybrids with two species. When crossed with P. notatum (2n = 20), the four hybrids produced had 30 chromosomes and irregular meiosis, with an average of 27.37 univalents and 1.31 bivalents per cell, indicating little relationship between the genomes. Hybrids of a P. dilatatum X P. juergensii (2n = 20) cross had a fairly regular meiosis, with 10.38 univalents and 9.81 bivalents per cell, indicating the presence of one genome in common. In all hybrids megasporogenesis was normal, but the female gemetophyte eventually aborted. The findings show that yellow-anthered P. dilatatum can generally be substituted cytologically for the common type, which is an obligate apomict.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Genome Relations Between An Intraspecific Paspalum Dilatatum Hybrid And Two Diploid Paspalum Species, Agronomy Department, Mississippi State University, and Plant Science Research Division, Agricultural Research, U.S. Department of Agriculture, State College, Mississippi |
| Subjects: | Plant Production Crop Improvement |
| Divisions: | General |
| Depositing User: | Library ICRISAT-InfoSAT |
| Date Deposited: | 29 Feb 2012 14:52 |
| Last Modified: | 29 Feb 2012 14:52 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3324 |
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