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Citation for Study 25394

Citation title: "The evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica".

Study name: "The evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica".

This study is part of submission 25394 (Status: Published).

Citation

Renner S.S., Barreda V.D., & Schuster T.M. 2020. The evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica. Taxon, 69.

Authors

• Renner S.S.
• Barreda V.D.
• Schuster T.M.

Abstract

Coriariaceae comprise only Coriaria, a genus of shrubs with nine species in Australasia (but excluding Australia), five in the Himalayas, Taiwan, the Philippines, and Japan, one in the Mediterranean, and one ranging from Patagonia to Mexico. The sister family, Corynocarpaceae, comprises five species of evergreen trees from New Guinea to New Zealand and Australia. This distribution has long fascinated biogeographers as potential support for Wegener?s theory of continental drift, with alternative scenarios invoking either Antarctic or Beringian range expansions. Here, we present the discovery of pollen grains from Early Campanian (ca. 82 Mya) deposits in Antarctica, which we describe as Coriaripites goodii Barreda, Palazzesi, Teller?a, and newly generated nuclear and plastid molecular data for most of the family?s species and its outgroup. This greatly expands the family?s fossil record and is the so far oldest fossil of the order Cucurbitales. We used the phylogeny, new fossil, and an Oligocene flowering branch assigned to a small subclade of Coriaria to generate a chronogram and to study changes in chromosome number, deciduousness, and andromonoecy. Coriaria comprises a Northern (NH) and a Southern Hemisphere (SH) clade that diverged from each other in the Paleocene (ca. 57 Mya), with the SH clade reaching the New World once, through Antarctica, as supported by the fossil pollen. While the SH clade retained perfect flowers and evergreen leaves, the NH clade evolved andromonoecy and deciduousness. Polyploidy occurs in both clades and points to hybridization, matching weak species boundaries throughout the genus.

Keywords

Antarctica; biogeography; chromosome numbers; Cretaceous; deciduousness; Oligocene; pollen

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S25394
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref30200,
  	 author = {Susanne S. Renner and Viviana D. Barreda and Tanja M.  Schuster},
  	 title = {The evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica},
  	 year = {2020},
  	 keywords = {Antarctica; biogeography; chromosome numbers; Cretaceous; deciduousness; Oligocene; pollen},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Taxon},
  	 volume = {69},
  	 number = {},
  	 pages = {},
  	 abstract = {Coriariaceae comprise only Coriaria, a genus of shrubs with nine species in Australasia (but excluding Australia), five in the Himalayas, Taiwan, the Philippines, and Japan, one in the Mediterranean, and one ranging from Patagonia to Mexico. The sister family, Corynocarpaceae, comprises five species of evergreen trees from New Guinea to New Zealand and Australia. This distribution has long fascinated biogeographers as potential support for Wegener?s theory of continental drift, with alternative scenarios invoking either Antarctic or Beringian range expansions. Here, we present the discovery of pollen grains from Early Campanian (ca. 82 Mya) deposits in Antarctica, which we describe as Coriaripites goodii Barreda, Palazzesi, Teller?a, and newly generated nuclear and plastid molecular data for most of the family?s species and its outgroup. This greatly expands the family?s fossil record and is the so far oldest fossil of the order Cucurbitales. We used the phylogeny, new fossil, and an Oligocene flowering branch assigned to a small subclade of Coriaria to generate a chronogram and to study  changes in chromosome number, deciduousness, and andromonoecy. Coriaria comprises a Northern (NH) and a Southern Hemisphere (SH) clade that diverged from each other in the Paleocene (ca. 57 Mya), with the SH clade reaching the New World once, through Antarctica, as supported by the fossil pollen. While the SH clade retained perfect flowers and evergreen leaves, the NH clade evolved andromonoecy and deciduousness. Polyploidy occurs in both clades and points to hybridization, matching weak species boundaries throughout the genus. }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 30200
  AU  - Renner,Susanne S.
  AU  - Barreda,Viviana D.
  AU  - Schuster,Tanja M. 
  T1  - The evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica
  PY  - 2020
  KW  - Antarctica; biogeography; chromosome numbers; Cretaceous; deciduousness; Oligocene; pollen
  UR  - http://dx.doi.org/
  N2  - Coriariaceae comprise only Coriaria, a genus of shrubs with nine species in Australasia (but excluding Australia), five in the Himalayas, Taiwan, the Philippines, and Japan, one in the Mediterranean, and one ranging from Patagonia to Mexico. The sister family, Corynocarpaceae, comprises five species of evergreen trees from New Guinea to New Zealand and Australia. This distribution has long fascinated biogeographers as potential support for Wegener?s theory of continental drift, with alternative scenarios invoking either Antarctic or Beringian range expansions. Here, we present the discovery of pollen grains from Early Campanian (ca. 82 Mya) deposits in Antarctica, which we describe as Coriaripites goodii Barreda, Palazzesi, Teller?a, and newly generated nuclear and plastid molecular data for most of the family?s species and its outgroup. This greatly expands the family?s fossil record and is the so far oldest fossil of the order Cucurbitales. We used the phylogeny, new fossil, and an Oligocene flowering branch assigned to a small subclade of Coriaria to generate a chronogram and to study  changes in chromosome number, deciduousness, and andromonoecy. Coriaria comprises a Northern (NH) and a Southern Hemisphere (SH) clade that diverged from each other in the Paleocene (ca. 57 Mya), with the SH clade reaching the New World once, through Antarctica, as supported by the fossil pollen. While the SH clade retained perfect flowers and evergreen leaves, the NH clade evolved andromonoecy and deciduousness. Polyploidy occurs in both clades and points to hybridization, matching weak species boundaries throughout the genus. 
  L3  - 
  JF  - Taxon
  VL  - 69
  IS  - 
  ER  -