Processes that drive the population structuring of <i>Jenynsia lineata</i> (Cyprinidontiformes, Anablepidae) in the La Plata Basin

Briñoccoli, Yanina F.; Queiroz, Luiz Jardim de; Bogan, Sergio; Paracampo, Ariel Hernán; Posadas, Paula; Somoza, Gustavo M.; Montoya‐Burgos, Juan I.; Cardoso, Yamila Paula

doi:10.1002/ece3.7427

Cited by 6 publications

(5 citation statements)

References 80 publications

(68 reference statements)

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“…This pattern is frequently observed in species with low dispersal ability (e.g. Briñoccoli et al, 2021) like P. parodii. Our F ST values indicate clear differentiation among the main evolutionary lineages, and the remaining analyses pointed to the spontaneous establishment and long-term persistence of them in micro-refugia.…”

Section: Functional Annotation Of Detected Outlier Snpsmentioning

confidence: 62%

“…Smolders et al, 2002;Thalmeier et al, 2021), and fragmenting and disconnecting entire basins (e.g. Briñoccoli et al, 2021) that also impacted the riverbanks and lands around. The Pleistocene impact on P. parodii diversification was highly supported by demographic analysis based on this high-dense genome coverture.…”

Section: Functional Annotation Of Detected Outlier Snpsmentioning

confidence: 99%

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Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

Giudicelli

Turchetto

Guzmán-Rodriguez

et al. 2021

Journal of Biogeography

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Aim Pleistocene climate oscillations influenced the species distribution and genetic diversity in grasslands, and such climatic changes promoted expansion and contraction cycles, leading to fragmentation and isolation of evolutionary lineages in refuges. This study aimed to infer the evolutionary processes that most influenced the genetic diversity of a South American nightshade Petunia inhabiting subtropical grasslands under the Pleistocene influence. Location Pampa and Chaco. Taxon The widely distributed herb Petunia axillaris subsp. parodii (Solanaceae). Methods We obtained high‐density genome coverage throughout the geographical distribution of Petunia axillaris subsp. parodii. We estimated the genetic diversity and structure to evaluate population differentiation and applied a model‐based demographic analysis to investigate the scenarios that could have influenced the species' evolutionary history. We evaluated the association between neutral and outlier polymorphisms with environmental variables to distinguish the influence of the geographical distance and environmental differences between populations. Results There are three evolutionary lineages in P. axillaris subsp. parodii. The origin and differentiation of these lineages were related to the Pleistocene refuges and rivers acting as barriers to gene flow. We also identified 496 outlier loci related to adaptation to environmental conditions. Main conclusion The Pleistocene climate changes drove lineage diversification isolated in micro‐refugia. Rivers and changes in their courses may have also acted on the population divergence, serving as barriers to gene flow or even as corridors for species range expansion. These findings contribute to the knowledge of the evolutionary processes that influenced the lineage diversification of South American subtropical grassland species.

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Section: Functional Annotation Of Detected Outlier Snpsmentioning

confidence: 62%

Section: Functional Annotation Of Detected Outlier Snpsmentioning

confidence: 99%

Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

Giudicelli

Turchetto

Guzmán-Rodriguez

et al. 2021

Journal of Biogeography

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“…These endorheic basins are characterized by high diversity of endemic freshwater fishes ( Miquelarena and Menni 1999 ). Briñoccoli et al (2021) observed that the type (endorheic vs. exorheic) of basin played a predominant role in population structure (as well as the altitude at which the rivers were located) in Jenynsia lineata , a small ovoviviparous fish widely distributed throughout the La Plata Basin. As well as in A.…”

Section: Discussionmentioning

confidence: 98%

“…If the time of isolation is long enough, it can result in population genetic differentiation within the species that has been fragmented. But if the time of isolation is even greater, it may eventually lead to allopatric speciation ( Dias et al 2013 ; Jardim de Queiroz et al 2017 ; Briñoccoli et al 2021 ). Finally, to assess whether the IBE is structuring the haplotype network of Acrobrycon species, we measured the altitude in meters above sea level for each site in which specimens of Acrobrycon were collected.…”

Section: Materials and Methodsmentioning

confidence: 99%

Molecular and morphological evidence revalidates Acrobrycon tarijae (Characiformes, Characidae) and shows hidden diversity

Briñoccoli¹,

Bogan²,

Arcila³

et al. 2022

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We conducted a revision of the Neotropical genus Acrobrycon. A previous study synonymized the species, A. ipanquianus, distributed from the western portion of the Amazon River to the north-western region of the La Plata River Basin, and A. tarijae, with type locality in the Lipeo River in Bolivia. We revisited this result by collecting new morphometric, meristic, and genetic data (COI mitochondrial gene) for 24 individuals distributed along La Plata River Basin in Argentina, and discussed our results in the context of multiple biogeographic processes of isolation in that basin. Our results revealed a more complex history of diversification and geographic distribution across Acrobrycon species than previously suspected, probably associated with multiple biogeographic processes of isolation in La Plata River Basin. We present new evidence that led us to reconsider the validity of A. tarijae, which is distinguishable from A. ipanquianus by the number of vertebrae (37–39 vs. 41–42) and pleural ribs (12–13 vs. 14). These results were also supported by our molecular analyses that revealed a genetic divergence >4% between A. ipanquianus and A. tarijae. We also identified two main genetic clusters within A. tarijae: the first cluster consisted of specimens from the Bermejo, Pilcomayo, Itiyuro and Juramento river basins (northern Argentina); and the second cluster included specimens from the southernmost basins, such as the Salí River in Tucumán, Cuarto River in the province of Cordoba and the Quinto River in the province of San Luis. Our results suggest that the genetic structure observed in A. tarijae is the result of the type of drainage (endorheic vs. exorheic) and geographical distance.

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“…There are enough examples of consanguineous populations with significant phylogenetic differences. For example, these include populations of char of the genus Salvelinus in the lake and lake-river systems of the Kamchatka Peninsula [47]; the northern slimy salamander (Plethodon glutinosus), living in several southern states of the United States [48]; Jenynsia lineata, which is a small viviparous fish from South America [49]; and the black-throated blue warbler (Dendroica caerulescens), living in North America with northern and southern subpopulations [50]. With the variety of reasons for the disjoining of these populations, it can be assumed that they are characterized by disruptive selection of certain traits and reproductive isolation between extreme forms.…”

Section: Discussionmentioning

confidence: 99%

Transition from Bi- to Quadro-Stability in Models of Population Dynamics and Evolution

Frisman,

Kulakov

2023

Mathematics

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The article is devoted to a review of bistability and quadro-stability phenomena found in a certain class of mathematical models of population numbers and allele frequency dynamics. The purpose is to generalize the results of studying the transition from bi- to quadro-stability in such models. This transition explains the causes and mechanisms for the appearance and maintenance of significant differences in numbers and allele frequencies (genetic divergence) in neighboring sites within a homogeneous habitat or between adjacent generations. Using qualitative methods of differential equations and numerical analysis, we consider bifurcations that lead to bi- and quadro-stability in models of the following biological objects: a system of two coupled populations subject to natural selection; a system of two connected limited populations described by the Bazykin or Ricker model; a population with two age stages and density-dependent regulation. The bistability in these models is caused by the nonlinear growth of a local homogeneous population or the phase bistability of the 2-cycle in populations structured by space or age. We show that there is a series of similar bifurcations of equilibrium states or fixed or periodic points that precede quadro-stability (pitchfork, period-doubling, or saddle-node bifurcation).

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Processes that drive the population structuring of Jenynsia lineata (Cyprinidontiformes, Anablepidae) in the La Plata Basin

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 6 publications

References 80 publications

Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

Molecular and morphological evidence revalidates Acrobrycon tarijae (Characiformes, Characidae) and shows hidden diversity

Transition from Bi- to Quadro-Stability in Models of Population Dynamics and Evolution

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Processes that drive the population structuring of Jenynsia lineata (Cyprinidontiformes, Anablepidae) in the La Plata Basin

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 6 publications

References 80 publications

Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

Population genomics indicates micro‐refuges and riverine barriers for a southern South American grassland nightshade

﻿Molecular and morphological evidence revalidates Acrobrycon tarijae (Characiformes, Characidae) and shows hidden diversity

Transition from Bi- to Quadro-Stability in Models of Population Dynamics and Evolution

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Product

Resources

About

Molecular and morphological evidence revalidates Acrobrycon tarijae (Characiformes, Characidae) and shows hidden diversity