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- W2327368045 abstract "1. Hybridization between Spirogyra, communis and S. varians and between S. varians and S. porticalis have been observed. The forms, probably derived from these crosses have also been found. 2. Hybrids are exceedingly rare among species of Spirogyra. 3. They have been observed only in a few species. 4. Hybrid zygospores, may be formed between species even though they have very different vegetative and spore characters. 5. The nuclei derived from the two gametes do not fuse until after the zygospore wall matures. The form of the zygospore is determined entirely by the female gamete. 6. The fusion nucleus of a hybrid zygospore contains factors for all the various characters of both species. When the reduction division takes place these factors are segregated in various combinations in the final spore nucleus. 7. When the filaments derived from hybrid zygospores fruit their hybrid character becomes evident in the dimensions of the filament, the character of the sporiferous cell and the form of the zygospores...." @default.
- W2327368045 created "2016-06-24" @default.
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- W2327368045 date "1920-03-01" @default.
- W2327368045 modified "2023-10-18" @default.
- W2327368045 title "Hybrids among Species of Spirogyra." @default.
- W2327368045 doi "https://doi.org/10.2307/2255225" @default.
- W2327368045 hasPublicationYear "1920" @default.
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