Oogenesis and Reproduction of the Birch Cyst Nematode, Heterodera betulae
Cytological study revealed that maturation of oocytes of Heterodera betulae is by regular meiosis and reproduction is by parthenogenesis. Restoration of the somatic chromosome number occurs after telophase II and before egg pronucleus formation, in the absence of a mitotic apparatus through a type o...
| Veröffentlicht in: | Journal of nematology. - 1969. - 2(1970), 4 vom: 13. Okt., Seite 399-403 |
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| 1. Verfasser: | |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1970
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| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Chromosomes Heterodera betulae Oogenesis Reproduction |
| Zusammenfassung: | Cytological study revealed that maturation of oocytes of Heterodera betulae is by regular meiosis and reproduction is by parthenogenesis. Restoration of the somatic chromosome number occurs after telophase II and before egg pronucleus formation, in the absence of a mitotic apparatus through a type of endomitotic division. The haploid chromosome number is 12 (2n = 24) in 95% of the female nematodes studied and 13 in the remaining 5%. The phylogenetic relationship of H. betulae with most other Heterodera species having n = 9 is not clear |
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| Beschreibung: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |