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Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae).

Publication ,  Journal Article
Manos, PS; Doyle, JJ; Nixon, KC
Published in: Molecular phylogenetics and evolution
August 1999

Quercus is one of the most abundant and economically important genera of woody plants in the Northern Hemisphere. To infer phylogenetic relationships within Quercus subgenus Quercus, chloroplast DNA (cpDNA) restriction sites and nucleotide sequences of the internal transcribed spacers (ITS) and the 5.8S coding region of the nuclear ribosomal DNA repeat were obtained for 44 individuals, including 25 species, intraspecific samples, and three outgroups. Separate parsimony analyses of each data set showed that individual gene trees were congruent and often complementary in supporting clades that generally corresponded to previously recognized taxonomic groups. Only one instance of strongly supported gene tree incongruence was detected and this anomalous pattern was explained best by ancient introgression of cpDNA across sectional boundaries. Simultaneous parsimony analysis of the pruned data sets supported the recognition of the strictly Eurasian section Cerris and resolved a novel hypothesis for the major infrageneric groups (Cerris- (Lobatae- (Protobalanus + Quercus sensu stricto))). The biogeographic hypothesis that all major oak lineages evolved locally at middle latitudes within the general distribution of their fossil ancestors was fully supported. This set of relationships also suggested a New World origin for the widespread white oaks of the Northern Hemisphere (section Quercus s. s.). For both data sets, inter- and intraspecific sampling within section Protobalanus showed little correspondence to morphological species. Greater cladistic structure among the samples was obtained by cpDNA restriction sites and two well-delimited plastomes types comprising a total of 15 distinct haplotypes were resolved. Haplotypes of 2 of the peripheral species in this species complex occupy terminal portions of one of the plastome clades, suggesting a more recent origin relative to those of more widespread species. The phylogeography of the two divergent plastome types suggested a north-south pattern, consistent with a Late Tertiary disjunction in the ancestral distribution of section Protobalanus.

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Published In

Molecular phylogenetics and evolution

DOI

EISSN

1095-9513

ISSN

1055-7903

Publication Date

August 1999

Volume

12

Issue

3

Start / End Page

333 / 349

Related Subject Headings

  • Trees
  • Sequence Analysis, DNA
  • Sequence Alignment
  • RNA, Ribosomal, 5.8S
  • Phylogeny
  • Molecular Sequence Data
  • Geography
  • Evolutionary Biology
  • DNA, Ribosomal
  • DNA, Plant
 

Citation

APA
Chicago
ICMJE
MLA
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Manos, P. S., Doyle, J. J., & Nixon, K. C. (1999). Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae). Molecular Phylogenetics and Evolution, 12(3), 333–349. https://doi.org/10.1006/mpev.1999.0614
Manos, P. S., J. J. Doyle, and K. C. Nixon. “Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae).Molecular Phylogenetics and Evolution 12, no. 3 (August 1999): 333–49. https://doi.org/10.1006/mpev.1999.0614.
Manos PS, Doyle JJ, Nixon KC. Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae). Molecular phylogenetics and evolution. 1999 Aug;12(3):333–49.
Manos, P. S., et al. “Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae).Molecular Phylogenetics and Evolution, vol. 12, no. 3, Aug. 1999, pp. 333–49. Epmc, doi:10.1006/mpev.1999.0614.
Manos PS, Doyle JJ, Nixon KC. Phylogeny, biogeography, and processes of molecular differentiation in Quercus subgenus Quercus (Fagaceae). Molecular phylogenetics and evolution. 1999 Aug;12(3):333–349.
Journal cover image

Published In

Molecular phylogenetics and evolution

DOI

EISSN

1095-9513

ISSN

1055-7903

Publication Date

August 1999

Volume

12

Issue

3

Start / End Page

333 / 349

Related Subject Headings

  • Trees
  • Sequence Analysis, DNA
  • Sequence Alignment
  • RNA, Ribosomal, 5.8S
  • Phylogeny
  • Molecular Sequence Data
  • Geography
  • Evolutionary Biology
  • DNA, Ribosomal
  • DNA, Plant