Phylogeographic patterns and species delimitation in the endangered silverside “humboldtianum” clade (Pisces: Atherinopsidae) in central Mexico: understanding their evolutionary history

Betancourt‐Resendes, Isaí; Pérez‐Rodríguez, Rodolfo; Barriga-Sosa, Irene de los A.; Piller, Kyle R.; Domínguez‐Domínguez, Omar

doi:10.1007/s13127-019-00419-x

Cited by 8 publications

(22 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, the populations in the Jataté and the Amarillo and Chenalhó subbasins appear closely related in the nuc-S7 haplotype network. Similar findings have been observed for other freshwater fishes ( Beltrán-López et al, 2017 , Beltrán-López et al, 2018 ; Betancourt-Resendes, Pérez-Rodríguez & Domínguez-Domínguez, 2018 , Betancourt-Resendes et al, 2019 ). The presence of both nuclear and mitochondrial shared haplotypes between the upper Grijalva and upper Usumacinta basins would more robustly support a connection between them.…”

Section: Discussionsupporting

confidence: 90%

Genetic diversity and structure of one of the most endangered freshwater fish species in Mexico:Tlaloc hildebrandi(Miller, 1950) and recognition of its evolutionarily significant units

Beltrán-López¹,

González‐Díaz

Soria‐Barreto

et al. 2021

PeerJ

View full text Add to dashboard Cite

The endangered Chiapas killifish Tlaloc hildebrandi is an endemic freshwater species that lives in four subbasins of the Grijalva and Usumacinta basins, and one of the most geographically restricted species of the Produndulidae family. The species was originally described as endemic to springs in the high limestone plateau in San Cristóbal de Las Casas in the Río Amarillo subbasin (upper Grijalva basin). However, it was recently recorded in the Jataté and Tzaconejá subbasins in the upper Usumacinta basin, thereby expanding its known distribution range. The discovery of these populations is relevant not only for the conservation of the species but also for a better understanding of its evolutionary history. Currently, the scarce populations of T. hildebrandi, found in only a few localities in the Grijalva and Usumacinta basins, are fragmented and living under unfavorable conditions. Here, we analyzed three mitochondrial (mt-atp8&6 and mt-nd2) and one nuclear (nuc-s7) marker in order to assess the genetic diversity and population structure of T. hildebrandi. We found that, in comparison with other endangered freshwater fish species from Mexico, T. hildebrandi showed a lower level of genetic diversity (mt-nd2: h = 0.469, π = 0.0009; mt-atp8&6: h = 0.398, π = 0.001; and nuc-S7: h = 0.433, π = 0.001). Moreover, the analyzed populations exhibited a strong genetic structure in accordance with their geographic distribution, and can be placed into three genetic clusters: (1) Amarillo plus Chenhaló in the upper Grijalva basin, (2) Jataté, and (3) Tzaconejá, both in the upper Usumacinta basin. On the basis of our results, we propose the recognition of at least three evolutionarily significant units (ESUs) for the species and the urgent implementation of ex situ and in situ conservation and management efforts that consider the genetic background of the species.

show abstract

Section: Discussionsupporting

confidence: 90%

Genetic diversity and structure of one of the most endangered freshwater fish species in Mexico:Tlaloc hildebrandi(Miller, 1950) and recognition of its evolutionarily significant units

Beltrán-López¹,

González‐Díaz

Soria‐Barreto

et al. 2021

PeerJ

View full text Add to dashboard Cite

show abstract

“…Although we did not include nuclear DNA sequences in our study, recently Betancourt‐Resendes et al . (2020) found a shallow divergence pattern in the ribosomal intron S7 of the Chirostoma humboldtianum species clade that supports the finding that the mtDNA pattern recovered in this study could be the result of the maintenance of ancestral polymorphism coupled with the recent divergence of the group.…”

Section: Discussionsupporting

confidence: 87%

“…(2009). This scenario is compatible with a species completely adapted to lentic systems that showed poor dispersal abilities through lotic systems (Betancourt‐Resendes et al ., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…(2018). It is important to mention that similar divergence times to those reported in this study for the origin of C. humboldtianum have been found using substitution rates (Betancourt‐Resendes et al ., 2020; García‐Martínez et al ., 2015), which reinforces the finding that the Mesa Central has a very complex history and further studies are needed in the area.…”

Section: Discussionmentioning

confidence: 99%

“…Biogeographically, most of the species of the genus Chirostoma are restricted to the Mexican Central Plateau, where diversification has taken place in the last 5 Ma (Campanella et al ., 2015). In particular, the radiation of the Chirostoma humboldtianum species flock, which includes nine species, has occurred in the last 1 Ma (Betancourt‐Resendes et al ., 2020; Bloom et al ., 2013). In the Mexican Central Plateau, the major hydrographic features are the Río Lerma and the Río Santiago, which drain much of the area.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

“Colonization routes and demographic history of Chirostoma humboldtianum in the central Mexican plateau”

García-Martínez

Barriga-Sosa

López

et al. 2020

Journal of Fish Biology

View full text Add to dashboard Cite

In the present study we evaluate the population structure and potential colonization routes of the silverside Chirostoma humboldtianum through approximate Bayesian computations. Six microsatellite loci were amplified in a total of 288 individuals from six different locations covering the complete geographic distribution of the species. Additionally, two mitochondrial DNA markers, a D loop control region and cytochrome b were amplified in a subset of 107 individuals. The results found with microsatellites allow recovering well-structured populations that have experienced a drastic reduction in the effective population size. On the other hand, mtDNA sequences showed a moderate phylogeographic structure with shared haplotypes between geographic localities and signalsof a slight increase in the effective population size. Finally, the approximate Bayesian computation analysis performed with both datasets suggested a west-to-east colonization route for the species in Central Mexico.

show abstract

Mexican Freshwater Fishes in the Anthropocene

Beltrán-López

García-Andrade

Ornelas‐García

2023

Mexican Fauna in the Anthropocene

View full text Add to dashboard Cite

Phylogeographic patterns and species delimitation in the endangered silverside “humboldtianum” clade (Pisces: Atherinopsidae) in central Mexico: understanding their evolutionary history

Cited by 8 publications

References 73 publications

Genetic diversity and structure of one of the most endangered freshwater fish species in Mexico:Tlaloc hildebrandi(Miller, 1950) and recognition of its evolutionarily significant units

Genetic diversity and structure of one of the most endangered freshwater fish species in Mexico:Tlaloc hildebrandi(Miller, 1950) and recognition of its evolutionarily significant units

“Colonization routes and demographic history of Chirostoma humboldtianum in the central Mexican plateau”

Mexican Freshwater Fishes in the Anthropocene

Contact Info

Product

Resources

About