The Evolutionary Implications of Interspecific Hybridization Among Four Species of Zinnia Sect. Mendezia (Compositae)

The Evolutionary Implications of Interspecific Hybridization Among Four Species of Zinnia Sect. Mendezia (Compositae)

Fertile interspecific hybrids were obtained among four species of Zinnia sect. Mendezia. The collection data and the segregation for ray color in $F_1$ hybrids suggest natural interspecific hybridization. Cytological data suggest that the descent of the four species from a common ancestor was accomp...

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Veröffentlicht in:Brittonia 1970-07, Vol.22 (3), p.207-216
1. Verfasser: Olorode, Omotoye
Format: Artikel
Sprache:eng
Schlagworte:
Achenes
Biological taxonomies
Chromosomes
Evolution
Genetic hybridization
Hybridity
Plants
Pollen
Prophase
Sympatric species
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Zusammenfassung:Fertile interspecific hybrids were obtained among four species of Zinnia sect. Mendezia. The collection data and the segregation for ray color in $F_1$ hybrids suggest natural interspecific hybridization. Cytological data suggest that the descent of the four species from a common ancestor was accompanied by reciprocal translocations involving non-homologous chromosomes.
ISSN:0007-196X
1938-436X
DOI:10.2307/2805903