Phylogeography of Liquidambar styraciflua (Altingiaceae) in Mesoamerica: survivors of a Neogene widespread temperate forest (or cloud forest) in North America?
Ecol Evol. 2014 Feb; 4(4):311-28.EE

Abstract

We investigate the genetic variation between populations of the American sweetgum (Liquidambar styraciflua), a tree species with a disjunct distribution between northeastern Texas and Mexico, by analyzing sequences of two chloroplast DNA plastid regions in Mesoamerica. Our results revealed phylogeographical structure, with private haplotypes distributed in unique environmental space at either side of the Trans-Mexican Volcanic Belt, and a split in the absence of gene flow dating back ca. 4.2-1.4 million years ago (MYA). Species distribution modeling results fit a model of refugia along the Gulf and Atlantic coasts but the present ranges of US and Mesoamerican populations persisted disjunct during glacial/interglacial cycles. Divergence between the US and Mesoamerican (ca. 8.4-2.8 MYA) populations of L. styraciflua and asymmetrical gene flow patterns support the hypothesis of a long-distance dispersal during the Pliocene, with fragmentation since the most recent glacial advance (120,000 years BP) according to coalescent simulations and high effective migration rates from Mesoamerica to the USA and close to zero in the opposite direction. Our findings implicate the Trans-Mexican Volcanic Belt as a porous barrier driving genetic divergence of L. styraciflua, corresponding with environmental niche differences, during the Pliocene to Quaternary volcanic arc episode 3.6 MYA, and a Mesoamerican origin of populations in the USA.

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Authors+Show Affiliations

Ruiz-Sanchez E

Departamento de Biología Evolutiva, Instituto de Ecología, A.C. Xalapa, Veracruz, 91070, México ; Red de Biodiversidad y Sistemática, Centro Regional del Bajío, Instituto de Ecología, A.C. Pátzcuaro, Michoacán, 61600, México.

Ornelas JF

Departamento de Biología Evolutiva, Instituto de Ecología, A.C. Xalapa, Veracruz, 91070, México.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24634718

Citation

Ruiz-Sanchez, Eduardo, and Juan Francisco Ornelas. "Phylogeography of Liquidambar Styraciflua (Altingiaceae) in Mesoamerica: Survivors of a Neogene Widespread Temperate Forest (or Cloud Forest) in North America?" Ecology and Evolution, vol. 4, no. 4, 2014, pp. 311-28.

Ruiz-Sanchez E, Ornelas JF. Phylogeography of Liquidambar styraciflua (Altingiaceae) in Mesoamerica: survivors of a Neogene widespread temperate forest (or cloud forest) in North America? Ecol Evol. 2014;4(4):311-28.

Ruiz-Sanchez, E., & Ornelas, J. F. (2014). Phylogeography of Liquidambar styraciflua (Altingiaceae) in Mesoamerica: survivors of a Neogene widespread temperate forest (or cloud forest) in North America? Ecology and Evolution, 4(4), 311-28. https://doi.org/10.1002/ece3.938

Ruiz-Sanchez E, Ornelas JF. Phylogeography of Liquidambar Styraciflua (Altingiaceae) in Mesoamerica: Survivors of a Neogene Widespread Temperate Forest (or Cloud Forest) in North America. Ecol Evol. 2014;4(4):311-28. PubMed PMID: 24634718.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Phylogeography of Liquidambar styraciflua (Altingiaceae) in Mesoamerica: survivors of a Neogene widespread temperate forest (or cloud forest) in North America? AU - Ruiz-Sanchez,Eduardo, AU - Ornelas,Juan Francisco, Y1 - 2014/01/10/ PY - 2013/07/03/received PY - 2013/10/11/revised PY - 2013/10/19/accepted PY - 2014/3/18/entrez PY - 2014/3/19/pubmed PY - 2014/3/19/medline KW - Altingiaceae KW - Liquidambar KW - Mesoamerica KW - Mexico KW - Pleistocene KW - Trans-Mexican Volcanic Belt KW - cloud forests SP - 311 EP - 28 JF - Ecology and evolution JO - Ecol Evol VL - 4 IS - 4 N2 - We investigate the genetic variation between populations of the American sweetgum (Liquidambar styraciflua), a tree species with a disjunct distribution between northeastern Texas and Mexico, by analyzing sequences of two chloroplast DNA plastid regions in Mesoamerica. Our results revealed phylogeographical structure, with private haplotypes distributed in unique environmental space at either side of the Trans-Mexican Volcanic Belt, and a split in the absence of gene flow dating back ca. 4.2-1.4 million years ago (MYA). Species distribution modeling results fit a model of refugia along the Gulf and Atlantic coasts but the present ranges of US and Mesoamerican populations persisted disjunct during glacial/interglacial cycles. Divergence between the US and Mesoamerican (ca. 8.4-2.8 MYA) populations of L. styraciflua and asymmetrical gene flow patterns support the hypothesis of a long-distance dispersal during the Pliocene, with fragmentation since the most recent glacial advance (120,000 years BP) according to coalescent simulations and high effective migration rates from Mesoamerica to the USA and close to zero in the opposite direction. Our findings implicate the Trans-Mexican Volcanic Belt as a porous barrier driving genetic divergence of L. styraciflua, corresponding with environmental niche differences, during the Pliocene to Quaternary volcanic arc episode 3.6 MYA, and a Mesoamerican origin of populations in the USA. SN - 2045-7758 UR - https://www.unboundmedicine.com/medline/citation/24634718/Phylogeography_of_Liquidambar_styraciflua__Altingiaceae__in_Mesoamerica:_survivors_of_a_Neogene_widespread_temperate_forest__or_cloud_forest__in_North_America DB - PRIME DP - Unbound Medicine ER -

Tags

Phylogeography of Liquidambar styraciflua (Altingiaceae) in Mesoamerica: survivors of a Neogene widespread temperate forest (or cloud forest) in North America?Ecol Evol. 2014 Feb; 4(4):311-28.EE