@ARTICLE{TreeBASE2Ref16808,
author = {Leena Myllys and Katileena Lohtander and Anders Tehler},
title = {?-tubulin, ITS and group I intron sequences challenge the species pair concept in Physcia aipolia and P. caesia.},
year = {2001},
keywords = {Ascomycetes; cryptic species; evolution; genetic marker; Lecanorales; lichenized fungi; parsimony jackknifer},
doi = {},
url = {http://www.jstor.org/stable/3761655},
pmid = {},
journal = {Mycologia},
volume = {93},
number = {2},
pages = {335--343},
abstract = {ITS, group I intron and partial ?-tubulin sequences were used to infer phylogenies of a putative lichen species pair: Physcia aipolia (sexual) and P. caesia (asexual). A jackknife tree obtained from the ?-tubulin sequences produced a well-resolved tree, whereas the resolution in the group I intron and in the ITS tree was lower due to homoplasy. The results obtained from the combined group I intron, ITS and ?-tubulin data indicate that neither P. caesia nor P. aipolia are monophyletic and suggest that the two taxa are conspecific. Although the combined DNA data suggest the existence of several genetically isolated lineages in the P. aipolia/caesia group, the different lineages were not correlated with any morphological characters. Within one of the lineages, the incongruent placement of one P. aipolia specimen may indicate sexual recombination. A contradictory placement of one P. caesia specimen in different trees suggests that the usually asexual P. caesia is occasionally capable of sexual reproduction. The ?-tubulin gene was found to contain enough variation for inferring relationships at the species level. Most of the informative characters were found from intron sequences and third codon positions in the exon regions. All the nucleotide substitutions were synonymous.}
}
Matrix 3678 of Study 702
Citation title:
"?-tubulin, ITS and group I intron sequences challenge the species pair concept in Physcia aipolia and P. caesia.".
This study was previously identified under the legacy study ID S542
(Status: Published).
Matrices
Title: b-tubulin (Figure 2a)
Description: Legacy TreeBASE Matrix ID = M796
Rows
Taxon Label |
Row Segments |
Characters 1?–30 |
Physcia alnophila 4286b |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia alnophila 7894a |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia alnophila 390 |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia alnophila 399 |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia alnophila 380 |
(none)
|
????TTACG?GTCAAAGGCATCTGGGAACA |
Physcia caesia 7934 |
(none)
|
TAGCTTACGAGTCAAAGGCATCGGGGA?CA |
Physcia caesia 316 |
(none)
|
???CTTACGAGTCAAAGGCATCGGGTAACA |
Physcia caesia 12019 |
(none)
|
GAGCTTACGAGTCAAAGGCATCGGGTAACA |
Physcia caesia 3847 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 5160 |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 7915 |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 10137 |
(none)
|
TAGCTTACGAGTCAAAGGCATCTGGGAACA |
Physcia caesia 3341b |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia caesia 3472a |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia caesia 190 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia caesia 346 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia caesia 7887 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia caesia 10810 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 7894b |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 7891 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 7906 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 7894c |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 404 |
(none)
|
TAGCTTACAAGTCAAAGGCATCTGGGAACA |
Physcia aipolia 314 |
(none)
|
TAGCTTACAATTCAAAGGCATCTGGGAACA |
Physcia aipolia 400 |
(none)
|
TAGCTTATAATTCAAAGGCATCTGGGAACA |
Physcia aipolia 3021a |
(none)
|
TAGCTTACAATTCAAAGGCATCTGGGAACA |
Columns
None of the columns has a description.