ISSN:
1615-6110
Keywords:
Angiosperms
;
Ericaceae
;
Arctostaphylos
;
Meiotic pairing patterns
;
polyphyletic allopolyploidy
;
morphometrics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The central Sierran tetraploidArctostaphylos mewukka Merriam has been reported to be an allopolyploid originating from the diploid species,A. patula Greene and eitherA. viscida subsp.viscida Parry orA. viscida subsp.mariposa (Dudley)P. V. Wells, although without conclusive evidence. Morphometrics and the verification and determination of chromosome numbers were used to substantiate the evolutionary relationships among these species. A closely related species,Arctostaphylos truei Knight, was also examined using these methods to determine its separability fromA. mewukka. The morphometric analyses support a hypothesis for a polyphyletic origin ofA. mewukka from different races ofA. viscida andA. patula. The chromosomal data, although inclusive, also support this hypothesis. The data do not support the recognition ofA. truei as a taxonomic entity separate fromA. mewukka at the species level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00937596
