ISSN:
1573-5117
Keywords:
18S rDNA
;
biogeography
;
Bryopsidales
;
evolution
;
Halimeda
;
phylogeny
;
Tethys
;
vicariance
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Partial 18S rDNA sequences, including a 102 base pair insertion, were used to infer a phylogeny among 48 samples across all sections in Halimeda Lamouroux, 1812. The phylogeny reveals a separation of the monophyletic section Rhipsalis into a western Atlantic and a western Pacific clade. Consequently, morphologically similar species within this section such as H. monile (Ellis & Solander) Lamouroux (western Atlantic), and H. cylindracea Decaisne (western Pacific), are not sister taxa. Vicariant events that separated the tropical regions of the Atlantic and Indo-Pacific Oceans can explain the observed biogeographical pattern in section Rhipsalis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1017084018210
