Phylogeny, character evolution and taxonomic revision of Causonis, a segregate genus from Cayratia (Vitaceae)

Gaurav Parmar; Viet Cuong Dang; Romer Narindra Rabarijaona; Zhi Duan Chen; Betsy R. Jackes; Russell L. Barrett; Zhu Zhi Zhang; Yan Ting Niu; Anna Trias-Blasi; Jun Wen; Li Min Lu

doi:10.1002/tax.12562

Phylogeny, character evolution and taxonomic revision of Causonis, a segregate genus from Cayratia (Vitaceae)

Gaurav Parmar, Viet Cuong Dang, Romer Narindra Rabarijaona, Zhi Duan Chen, Betsy R. Jackes, Russell L. Barrett, Zhu Zhi Zhang, Yan Ting Niu, Anna Trias-Blasi, Jun Wen, Li Min Lu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Causonis (Vitaceae) is widely distributed in the tropical, sub-tropical and temperate regions from Asia to Australia. The genus was established by Rafinesque in 1830 but included under Cayratia by Gagnepain in 1911. Generic status of Causonis was restored in 2013, but circumscription of the genus and its species remained poorly understood. Here, we sample 92 accessions of Causonis to reconstruct the phylogenetic relationships within the genus using four chloroplast loci (atpB-rbcL, trnC-petN, trnH-psbA, trnL-F) and three nuclear loci (AS1, At103, ITS). Both the chloroplast and nuclear data support the monophyly of Causonis, and relationships among major clades of the genus are well-supported based on the chloroplast data. The first diverged clade consists of two species both endemic to Australasia. Evolutionary trends of eight morphological characters are tested through ancestral character state reconstruction using the chloroplast dataset. We recognize 16 species and 4 varieties in Causonis, including two new species: C. australasica sp. nov. and C. glauca sp. nov. We herein make 10 new combinations for eight species and two varieties. The widespread Causonis japonica is also redefined based on morphological and molecular evidence.

Original language	English
Pages (from-to)	1188-1218
Number of pages	31
Journal	Taxon
Volume	70
Issue number	6
DOIs	https://doi.org/10.1002/tax.12562
Publication status	Published - Dec 2021

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title = "Phylogeny, character evolution and taxonomic revision of Causonis, a segregate genus from Cayratia (Vitaceae)",

abstract = "Causonis (Vitaceae) is widely distributed in the tropical, sub-tropical and temperate regions from Asia to Australia. The genus was established by Rafinesque in 1830 but included under Cayratia by Gagnepain in 1911. Generic status of Causonis was restored in 2013, but circumscription of the genus and its species remained poorly understood. Here, we sample 92 accessions of Causonis to reconstruct the phylogenetic relationships within the genus using four chloroplast loci (atpB-rbcL, trnC-petN, trnH-psbA, trnL-F) and three nuclear loci (AS1, At103, ITS). Both the chloroplast and nuclear data support the monophyly of Causonis, and relationships among major clades of the genus are well-supported based on the chloroplast data. The first diverged clade consists of two species both endemic to Australasia. Evolutionary trends of eight morphological characters are tested through ancestral character state reconstruction using the chloroplast dataset. We recognize 16 species and 4 varieties in Causonis, including two new species: C. australasica sp. nov. and C. glauca sp. nov. We herein make 10 new combinations for eight species and two varieties. The widespread Causonis japonica is also redefined based on morphological and molecular evidence.",

keywords = "Causonis, Cayratia, Vitaceae, character evolution, phylogeny, seed morphology, taxonomic revision",

author = "Gaurav Parmar and Dang, {Viet Cuong} and Rabarijaona, {Romer Narindra} and Chen, {Zhi Duan} and Jackes, {Betsy R.} and Barrett, {Russell L.} and Zhang, {Zhu Zhi} and Niu, {Yan Ting} and Anna Trias-Blasi and Jun Wen and Lu, {Li Min}",

note = "Publisher Copyright: {\textcopyright} 2021 International Association for Plant Taxonomy.",

year = "2021",

month = dec,

doi = "10.1002/tax.12562",

language = "English",

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TY - JOUR

T1 - Phylogeny, character evolution and taxonomic revision of Causonis, a segregate genus from Cayratia (Vitaceae)

AU - Parmar, Gaurav

AU - Dang, Viet Cuong

AU - Rabarijaona, Romer Narindra

AU - Chen, Zhi Duan

AU - Jackes, Betsy R.

AU - Barrett, Russell L.

AU - Zhang, Zhu Zhi

AU - Niu, Yan Ting

AU - Trias-Blasi, Anna

AU - Wen, Jun

AU - Lu, Li Min

PY - 2021/12

Y1 - 2021/12

N2 - Causonis (Vitaceae) is widely distributed in the tropical, sub-tropical and temperate regions from Asia to Australia. The genus was established by Rafinesque in 1830 but included under Cayratia by Gagnepain in 1911. Generic status of Causonis was restored in 2013, but circumscription of the genus and its species remained poorly understood. Here, we sample 92 accessions of Causonis to reconstruct the phylogenetic relationships within the genus using four chloroplast loci (atpB-rbcL, trnC-petN, trnH-psbA, trnL-F) and three nuclear loci (AS1, At103, ITS). Both the chloroplast and nuclear data support the monophyly of Causonis, and relationships among major clades of the genus are well-supported based on the chloroplast data. The first diverged clade consists of two species both endemic to Australasia. Evolutionary trends of eight morphological characters are tested through ancestral character state reconstruction using the chloroplast dataset. We recognize 16 species and 4 varieties in Causonis, including two new species: C. australasica sp. nov. and C. glauca sp. nov. We herein make 10 new combinations for eight species and two varieties. The widespread Causonis japonica is also redefined based on morphological and molecular evidence.

AB - Causonis (Vitaceae) is widely distributed in the tropical, sub-tropical and temperate regions from Asia to Australia. The genus was established by Rafinesque in 1830 but included under Cayratia by Gagnepain in 1911. Generic status of Causonis was restored in 2013, but circumscription of the genus and its species remained poorly understood. Here, we sample 92 accessions of Causonis to reconstruct the phylogenetic relationships within the genus using four chloroplast loci (atpB-rbcL, trnC-petN, trnH-psbA, trnL-F) and three nuclear loci (AS1, At103, ITS). Both the chloroplast and nuclear data support the monophyly of Causonis, and relationships among major clades of the genus are well-supported based on the chloroplast data. The first diverged clade consists of two species both endemic to Australasia. Evolutionary trends of eight morphological characters are tested through ancestral character state reconstruction using the chloroplast dataset. We recognize 16 species and 4 varieties in Causonis, including two new species: C. australasica sp. nov. and C. glauca sp. nov. We herein make 10 new combinations for eight species and two varieties. The widespread Causonis japonica is also redefined based on morphological and molecular evidence.

KW - Causonis

KW - Cayratia

KW - Vitaceae

KW - character evolution

KW - phylogeny

KW - seed morphology

KW - taxonomic revision

UR - http://www.scopus.com/inward/record.url?scp=85115276188&partnerID=8YFLogxK

U2 - 10.1002/tax.12562

DO - 10.1002/tax.12562

M3 - Article

SN - 0040-0262

VL - 70

SP - 1188

EP - 1218

JO - Taxon

JF - Taxon

IS - 6

ER -

Phylogeny, character evolution and taxonomic revision of Causonis, a segregate genus from Cayratia (Vitaceae)

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