An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification

Carex subgenus Psyllophorae is an engaging study group due to its early diversification compared to most Carex lineages, and its remarkable disjunct distribution in four continents corresponding to three independent sections: sect. Psyllophorae in Western Palearctic, sect. Schoenoxiphium in Afrotrop...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Carmen Benítez-Benítez, Ana Otero, Kerry A. Ford, Pablo García-Moro, Sabina Donadío, Modesto Luceño, Santiago Martín-Bravo, Pedro Jiménez-Mejías
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	Andes biogeography disjunction Gondwana long-distance dispersal niche conservatism Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/3b36d04e19da410781ad686ac5a0da77
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3b36d04e19da410781ad686ac5a0da77
record_format	dspace
spelling	oai:doaj.org-article:3b36d04e19da410781ad686ac5a0da772021-11-08T08:05:40ZAn Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification1664-462X10.3389/fpls.2021.735302https://doaj.org/article/3b36d04e19da410781ad686ac5a0da772021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.735302/fullhttps://doaj.org/toc/1664-462XCarex subgenus Psyllophorae is an engaging study group due to its early diversification compared to most Carex lineages, and its remarkable disjunct distribution in four continents corresponding to three independent sections: sect. Psyllophorae in Western Palearctic, sect. Schoenoxiphium in Afrotropical region, and sect. Junciformes in South America (SA) and SW Pacific. The latter section is mainly distributed in Patagonia and the Andes, where it is one of the few Carex groups with a significant in situ diversification. We assess the role of historical geo-climatic events in the evolutionary history of the group, particularly intercontinental colonization events and diversification processes, with an emphasis on SA. We performed an integrative study using phylogenetic (four DNA regions), divergence times, diversification rates, biogeographic reconstruction, and bioclimatic niche evolution analyses. The crown age of subg. Psyllophorae (early Miocene) supports this lineage as one of the oldest within Carex. The diversification rate probably decreased over time in the whole subgenus. Geography seems to have played a primary role in the diversification of subg. Psyllophorae. Inferred divergence times imply a diversification scenario away from primary Gondwanan vicariance hypotheses and suggest long-distance dispersal-mediated allopatric diversification. Section Junciformes remained in Northern Patagonia since its divergence until Plio-Pleistocene glaciations. Andean orogeny appears to have acted as a northward corridor, which contrasts with the general pattern of North-to-South migration for temperate-adapted organisms. A striking niche conservatism characterizes the evolution of this section. Colonization of the SW Pacific took place on a single long-distance dispersal event from SA. The little ecological changes involved in the trans-Pacific disjunction imply the preadaptation of the group prior to the colonization of the SW Pacific. The high species number of the section results from simple accumulation of morphological changes (disparification), rather than shifts in ecological niche related to increased diversification rates (radiation).Carmen Benítez-BenítezAna OteroKerry A. FordPablo García-MoroPablo García-MoroSabina DonadíoModesto LuceñoSantiago Martín-BravoPedro Jiménez-MejíasPedro Jiménez-MejíasFrontiers Media S.A.articleAndesbiogeographydisjunctionGondwanalong-distance dispersalniche conservatismPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Andes biogeography disjunction Gondwana long-distance dispersal niche conservatism Plant culture SB1-1110
spellingShingle	Andes biogeography disjunction Gondwana long-distance dispersal niche conservatism Plant culture SB1-1110 Carmen Benítez-Benítez Ana Otero Kerry A. Ford Pablo García-Moro Pablo García-Moro Sabina Donadío Modesto Luceño Santiago Martín-Bravo Pedro Jiménez-Mejías Pedro Jiménez-Mejías An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
description	Carex subgenus Psyllophorae is an engaging study group due to its early diversification compared to most Carex lineages, and its remarkable disjunct distribution in four continents corresponding to three independent sections: sect. Psyllophorae in Western Palearctic, sect. Schoenoxiphium in Afrotropical region, and sect. Junciformes in South America (SA) and SW Pacific. The latter section is mainly distributed in Patagonia and the Andes, where it is one of the few Carex groups with a significant in situ diversification. We assess the role of historical geo-climatic events in the evolutionary history of the group, particularly intercontinental colonization events and diversification processes, with an emphasis on SA. We performed an integrative study using phylogenetic (four DNA regions), divergence times, diversification rates, biogeographic reconstruction, and bioclimatic niche evolution analyses. The crown age of subg. Psyllophorae (early Miocene) supports this lineage as one of the oldest within Carex. The diversification rate probably decreased over time in the whole subgenus. Geography seems to have played a primary role in the diversification of subg. Psyllophorae. Inferred divergence times imply a diversification scenario away from primary Gondwanan vicariance hypotheses and suggest long-distance dispersal-mediated allopatric diversification. Section Junciformes remained in Northern Patagonia since its divergence until Plio-Pleistocene glaciations. Andean orogeny appears to have acted as a northward corridor, which contrasts with the general pattern of North-to-South migration for temperate-adapted organisms. A striking niche conservatism characterizes the evolution of this section. Colonization of the SW Pacific took place on a single long-distance dispersal event from SA. The little ecological changes involved in the trans-Pacific disjunction imply the preadaptation of the group prior to the colonization of the SW Pacific. The high species number of the section results from simple accumulation of morphological changes (disparification), rather than shifts in ecological niche related to increased diversification rates (radiation).
format	article
author	Carmen Benítez-Benítez Ana Otero Kerry A. Ford Pablo García-Moro Pablo García-Moro Sabina Donadío Modesto Luceño Santiago Martín-Bravo Pedro Jiménez-Mejías Pedro Jiménez-Mejías
author_facet	Carmen Benítez-Benítez Ana Otero Kerry A. Ford Pablo García-Moro Pablo García-Moro Sabina Donadío Modesto Luceño Santiago Martín-Bravo Pedro Jiménez-Mejías Pedro Jiménez-Mejías
author_sort	Carmen Benítez-Benítez
title	An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
title_short	An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
title_full	An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
title_fullStr	An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
title_full_unstemmed	An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification
title_sort	evolutionary study of carex subg. psyllophorae (cyperaceae) sheds light on a strikingly disjunct distribution in the southern hemisphere, with emphasis on its patagonian diversification
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/3b36d04e19da410781ad686ac5a0da77
work_keys_str_mv	AT carmenbenitezbenitez anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT anaotero anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT kerryaford anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pablogarciamoro anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pablogarciamoro anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT sabinadonadio anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT modestoluceno anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT santiagomartinbravo anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pedrojimenezmejias anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pedrojimenezmejias anevolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT carmenbenitezbenitez evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT anaotero evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT kerryaford evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pablogarciamoro evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pablogarciamoro evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT sabinadonadio evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT modestoluceno evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT santiagomartinbravo evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pedrojimenezmejias evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification AT pedrojimenezmejias evolutionarystudyofcarexsubgpsyllophoraecyperaceaeshedslightonastrikinglydisjunctdistributioninthesouthernhemispherewithemphasisonitspatagoniandiversification
_version_	1718442797962362880

An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification

Ejemplares similares