1. Identification of chromosomes with secondary constrictions in Melilotus species
- Author
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Herman J. Gorz, L. B. Johnson, Francis A. Haskins, and S. E. Schlarbaum
- Subjects
Chromosome pair ,Chromosome ,Karyotype ,Biology ,biology.organism_classification ,Officinalis ,Botany ,Genetics ,Melilotus ,Subgenus ,Molecular Biology ,Genetics (clinical) ,Biotechnology ,Chromosomal inversion - Abstract
Secondary constrictions were determined in one chromosome pair in the complements of M. intesta, M. macrocarpa, M. italica (subgenus Micromeli/otus), and M. alba and M. officinalis (subgenus Meli/otus). The karyotypes of M. intesta and M. macrocarpa were found to be similar. Chromosomes of M. italica were larger than the chromosomes of the other four Melilotus species. The chromosome size in M. italica suggests the presence of large chromosomes in an ancestral or pro-Melilotus prototype. The chromosomes with satellites of M. intesta and M. macrocarpa appear to differ in morphology from the satellite chromosomes of M. alba and M. officinalis by a paracentric inversion. The morphology of the satellite chromosomes in M. italica is thought to rep resent a more primitive type than in the other Meli/otus species studied .
- Published
- 1984
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