Chromosomal criteria and taxonomic relationships in the genus Lathyrus (Fabaceae) | ||||
| Taeckholmia | ||||
| Article 8, Volume 19, Issue 2, 1999, Page 193-201 PDF (248.71 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/taec.1999.12646 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Maged Abou-El-Enain  
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| Biological Sciences and Geology Department, Faculty of Education, Ain Shams University, Roxy (Heliopolis) P.C. 11341, Cairo, Egypt. | ||||
| Abstract | ||||
| Taxonomic relationships in eight species belonging to five of the 13 currently recognized sections of the genus Lathyrus have been discussed and their phylogeny based on chromosomal criteria is suggested. A diploid number of 2n = 14 (x = 7) has been found in all species studied and thus x = 7 is confirmed as the basic number in the genus. Karyotypes of the examined species have metacentric and submetacentric chromosomes that are variable in length. The retention of L. pratensis in the section Pratensis is confirmed. The assignment of L. hirsutus to section Lathyrus and of L. cicera and L. sativus to section Clymenum are supported. The present data revealed that L. pratensis is the most likely ancestral type in the genus and that Layhyrus represents a natural monophyletic group in the tribe Vicieae. | ||||
| Keywords | ||||
| Chromosomes; Karyotype; Lathyrus; Taxonomy | ||||
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