Cytopalynological studies in Zanonia indica (Cucurbitaceae), a monotypic genus
| Autor: | U. A. Attar, Manoj M. Lekhak, P. B. Yadav, K. S. Rajput, S. G. Ghane |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetics Zanonia indica Male meiosis Chromosome Karyotype Cell Biology Biology medicine.disease_cause 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Genus Pollen Centromere medicine Molecular Medicine Molecular Biology Cucurbitaceae |
| Zdroj: | The Nucleus. 61:105-109 |
| ISSN: | 0976-7975 0029-568X |
| DOI: | 10.1007/s13237-018-0234-y |
| Popis: | This paper presents first cytogenetical analysis of a monotypic genus, Zanonia indica (Cucurbitaceae). The diploid chromosome number was 2n = 2x = 30. Male meiosis was normal and revealed 15 bivalents at diakinesis. Karyotype was symmetrical (Stebbins’s 4a category). All chromosomes possessed median centromere. Chromosome length ranged from 1.10 ± 0.14 µm to 1.98 ± 0.33 µm. Mean chromosome length (MCL) was 1.47 ± 0.24 µm. Pollen grains were tricolporate and prolate with P/E ratio 1.49. |
| Databáze: | OpenAIRE |
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