BUCHHEIM MA, TURMEL M, ZIMMER EA, et al.
PHYLOGENY OF
CHLAMYDOMONAS (CHLOROPHYTA) BASED ON CLADISTIC-ANALYSIS OF NUCLEAR 18S
RIBOSOMAL-RNA SEQUENCE DATA
J PHYCOL 26 (4): 689-699 DEC 1990
Abstract:
The genus Chlamydomonas Ehrenberg may contain as many
as 450 described species. Morphological, physiological and molecular data show
that variation among some Chlamydomonas species can
be great, leading to speculation that multiple, generic-level lineages exist
within this genus. The most recent systematic studies of Chlamydomonas
have led to proposals of nine distinct morphological and 15 distinct sporangial
autolysin groups. Partial sequences from the nuclear small subunit rNAs from 14 Chlamydomonas
species representing 12 autolysin and four morphological groups, and from three
flagellates thought to be related to Chlamydomonas
were determined in a phylogenetic study of
relationships among these algae. Sequence comparisons among some Chlamydomonas species revealed differences comparable to
the sequence divergence between soybeans and cycads. Cladistic
analysis of the sequence data suggests that multiple lineages exist among
species of Chlamydomonas. Some of these lineages
represent alliances of both Chlamydomonas and non-Chlamydomonas taxa; thus, the
current taxonomy does not reflect natural, or monophyletic, groups.
Collectively, these lineages may represent distinct families or even orders.
CRESNAR B, MAGES W, MULLER K, et al.
STRUCTURE AND
EXPRESSION OF A SINGLE ACTIN GENE IN VOLVOX-CARTERI
CURR GENET 18 (4): 337-346 NOV 1990
MULLER K, LINDAUER A, BRUDERLEIN M, et al.
ORGANIZATION
AND TRANSCRIPTION OF VOLVOX
HISTONE-ENCODING GENES - SIMILARITIES BETWEEN ALGAL AND ANIMAL GENES
GENE 93 (2): 167-175
BALSHUSEMANN D, JAENICKE L
THE
OLIGOSACCHARIDES OF THE GLYCOPROTEIN PHEROMONE OF VOLVOX-CARTERI F NAGARIENSIS IYENGAR (CHLOROPHYCEAE)
EUR J BIOCHEM 192 (1): 231-237
PATTERNS OF
ORGANELLAR AND NUCLEAR INHERITANCE AMONG PROGENY OF 2 GEOGRAPHICALLY ISOLATED
STRAINS OF VOLVOX-CARTERI
CURR GENET 18 (2): 141-153 AUG 1990
BALSHUSEMANN D, JAENICKE L
TIME AND MODE
OF SYNTHESIS OF THE SEXUAL INDUCER GLYCOPROTEIN OF VOLVOX-CARTERI
FEBS LETT 264 (1): 56-58
WAFFENSCHMIDT S, KNITTLER M, JAENICKE L
CHARACTERIZATION OF A SPERM LYSIN OF VOLVOX-CARTERI
SEX PLANT REPROD 3 (1): 1-6
FEB 1990