Impact of persistent barrier to gene flow and catastrophic events on red algae evolutionary history along the Chilean coast

Simple item page
dc.contributor.authorHuanel, Oscar R.
dc.contributor.authorMontecinos, Alejandro E.
dc.contributor.authorSepulveda-Espinoza, Francisco
dc.contributor.authorGuillemin, Marie-Laure
dc.date.accessioned2025-01-20T17:07:28Z
dc.date.available2025-01-20T17:07:28Z
dc.date.issued2024
dc.description.abstractHistorical vicariance events, linked to the existence of stable physical barriers to gene flow, generate concordant genetic breaks in co-distributed species while stochastic processes (e.g., costal uplift) could cause species-specific genetic breaks as a result of local strong demographic bottlenecks or extinction. In Chile, previous studies show that the area of the 30 degrees S-33 degrees S could correspond to a stable barrier to gene flow that have affected the genetic structure of various algae and marine invertebrates. Here we sequenced two organellar genes (COI and rbcL) in four taxonomically accepted co-distributed red seaweeds species characterized by a low dispersal potential: Mazzaella laminarioides, M. membranacea, Asterfilopsis disciplinalis, and Ahnfeltiopsis vermicularis. Our results revealed the existence of ten strongly differentiated linages in the taxa studied. Strong genetic breaks, concordant in both space and time (divergence estimated to have occurred some 2.9-12.4 million years ago), were observed between taxa distributed across the 33 degrees S. Conversely, in the Central/South part of the Chilean coast, the localization of the genetic breaks/sub-structure observed varied widely (36 degrees S, 38 degrees S, 39 degrees S, and 40 degrees S). These results suggest that a major historical vicariance event has modeled the genetic structure of several Chilean marine organisms in the north of the Chilean coast during the mid-Miocene, while more recent stochastic events and genetic drift could be the driving forces of genetic divergence/structuration in the central-southern part of the coast.
dc.description.funderAgencia Nacional de Investigacin y Desarrollo10.13039/501100020884
dc.fuente.origenWOS
dc.identifier.doi10.3389/fgene.2024.1336427
dc.identifier.eissn1664-8021
dc.identifier.urihttps://doi.org/10.3389/fgene.2024.1336427
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90860
dc.identifier.wosidWOS:001188855500001
dc.language.isoen
dc.revistaFrontiers in genetics
dc.rightsacceso restringido
dc.subjectcomparative phylogeography
dc.subjectsoutheast pacific
dc.subjectrhodophyta
dc.subjectcoastal uplift
dc.subjectactual and historical barriers to gene flow
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleImpact of persistent barrier to gene flow and catastrophic events on red algae evolutionary history along the Chilean coast
dc.typeartículo
dc.volumen15
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
fgene-15-1336427.pdf
Size:
2.44 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas