Abstract
The tribe Convallarieae, comprising 10 genera and 95 species, has recently been transferred from its own family to Ruscaceae sensu lato. In this study, sequence data from trnK and rbcL were analyzed for 19 species in 8 genera, and chromosome morphology was analyzed for 17 species in 7 genera. The parsimony analysis of trnK and rbcL sequences showed that Convallarieae are monophyletic. Although early branches did not receive strong bootstrap support, Convallaria diverged at the first branch, followed by Speirantha. The rest of the tribe was split into three, well-supported clades: one with Reineckea, the second with Campylandra and Rohdea, and the third with Tupistra, Tricalistra, and Aspidistra. Two monotypic genera, Rohdea and Tricalistra, were embedded in a clade of Campylandra and of Tupistra, respectively. Three karyotypes were distinguished in the tribe on the basis of the basic number and morphology of metaphase chromosomes: Convallaria type (with x = 19 and unimodal chromosome length), Tupistra type (with x = 19 and trimodal chromosome length), and Aspidistra-elatior type (with x = 18 and trimodal chromosome length). The character-state distribution in the molecular tree showed that the Convallaria type is plesiomorphic, from which was derived the Tupistra type and subsequently the Aspidistra-elatior type. Taxonomic treatments to transfer Campylandra to Rohdea and Tricalistra to Tupistra are also given.
| Original language | English |
|---|---|
| Pages (from-to) | 363-370 |
| Number of pages | 8 |
| Journal | Journal of Plant Research |
| Volume | 117 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 2004 |
| Externally published | Yes |
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Keywords
- Convallarieae
- Karyotype
- rbcL
- Rohdea
- trnK
- Tupistra
ASJC Scopus subject areas
- Plant Science
Cite this
Phylogenetic analyses and chromosome evolution in Convallarieae (Ruscaceae sensu lato), with some taxonomic treatments. / Yamashita, Jun; Tamura, Minoru N.
In: Journal of Plant Research, Vol. 117, No. 5, 10.2004, p. 363-370.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phylogenetic analyses and chromosome evolution in Convallarieae (Ruscaceae sensu lato), with some taxonomic treatments
AU - Yamashita, Jun
AU - Tamura, Minoru N.
PY - 2004/10
Y1 - 2004/10
N2 - The tribe Convallarieae, comprising 10 genera and 95 species, has recently been transferred from its own family to Ruscaceae sensu lato. In this study, sequence data from trnK and rbcL were analyzed for 19 species in 8 genera, and chromosome morphology was analyzed for 17 species in 7 genera. The parsimony analysis of trnK and rbcL sequences showed that Convallarieae are monophyletic. Although early branches did not receive strong bootstrap support, Convallaria diverged at the first branch, followed by Speirantha. The rest of the tribe was split into three, well-supported clades: one with Reineckea, the second with Campylandra and Rohdea, and the third with Tupistra, Tricalistra, and Aspidistra. Two monotypic genera, Rohdea and Tricalistra, were embedded in a clade of Campylandra and of Tupistra, respectively. Three karyotypes were distinguished in the tribe on the basis of the basic number and morphology of metaphase chromosomes: Convallaria type (with x = 19 and unimodal chromosome length), Tupistra type (with x = 19 and trimodal chromosome length), and Aspidistra-elatior type (with x = 18 and trimodal chromosome length). The character-state distribution in the molecular tree showed that the Convallaria type is plesiomorphic, from which was derived the Tupistra type and subsequently the Aspidistra-elatior type. Taxonomic treatments to transfer Campylandra to Rohdea and Tricalistra to Tupistra are also given.
AB - The tribe Convallarieae, comprising 10 genera and 95 species, has recently been transferred from its own family to Ruscaceae sensu lato. In this study, sequence data from trnK and rbcL were analyzed for 19 species in 8 genera, and chromosome morphology was analyzed for 17 species in 7 genera. The parsimony analysis of trnK and rbcL sequences showed that Convallarieae are monophyletic. Although early branches did not receive strong bootstrap support, Convallaria diverged at the first branch, followed by Speirantha. The rest of the tribe was split into three, well-supported clades: one with Reineckea, the second with Campylandra and Rohdea, and the third with Tupistra, Tricalistra, and Aspidistra. Two monotypic genera, Rohdea and Tricalistra, were embedded in a clade of Campylandra and of Tupistra, respectively. Three karyotypes were distinguished in the tribe on the basis of the basic number and morphology of metaphase chromosomes: Convallaria type (with x = 19 and unimodal chromosome length), Tupistra type (with x = 19 and trimodal chromosome length), and Aspidistra-elatior type (with x = 18 and trimodal chromosome length). The character-state distribution in the molecular tree showed that the Convallaria type is plesiomorphic, from which was derived the Tupistra type and subsequently the Aspidistra-elatior type. Taxonomic treatments to transfer Campylandra to Rohdea and Tricalistra to Tupistra are also given.
KW - Convallarieae
KW - Karyotype
KW - rbcL
KW - Rohdea
KW - trnK
KW - Tupistra
UR - http://www.scopus.com/inward/record.url?scp=9744279810&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=9744279810&partnerID=8YFLogxK
U2 - 10.1007/s10265-004-0169-z
DO - 10.1007/s10265-004-0169-z
M3 - Article
VL - 117
SP - 363
EP - 370
JO - Journal of Plant Research
JF - Journal of Plant Research
SN - 0918-9440
IS - 5
ER -