Hybridization between South American Jarilla and North American diploid creosotebush (Larrea, Zygophyllaceae)
Different strains of the two diploid Larrea species L. divaricata (S. America) and L. tridentata (N. America), are compared morphologically, cytologically, and in their seed proteins. There are minor differences, also in chiasma frequencies. Experimental F1 hybrids have near-normal meiosis but are s...
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Autores principales: | , |
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1977
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03782697_v126_n4_p331_Yang http://hdl.handle.net/20.500.12110/paper_03782697_v126_n4_p331_Yang |
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Sumario: | Different strains of the two diploid Larrea species L. divaricata (S. America) and L. tridentata (N. America), are compared morphologically, cytologically, and in their seed proteins. There are minor differences, also in chiasma frequencies. Experimental F1 hybrids have near-normal meiosis but are semisterile. The parental species, therefore, biologically may be considered "allopatric semispecies". © 1977 Springer-Verlag. |
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