Low levels of genetic diversity depicted from mitochondrial DNA sequences in a heavily exploited marine fish (Cynoscion acoupa, Sciaenidae) from the Northern coast of Brazil

Rodrigues, Rosa Maria; Schneider, Horácio; Santos, Simôni; Vallinoto, Marcelo; Sain-Paul, Ulrich; Sampaio, Iracilda

doi:10.1590/s1415-47572008000300015

Cited by 43 publications

(27 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Information derived from the analysis of DNA fragments has been increasingly employed in conservation programs. In the specific case of the fish icthyofauna, a large number of studies have confirmed the effectiveness of the mitochondrial control region for the detection of gene flow between populations or species, and the understanding of genetic variation, phylogeographic patterns, and demographic history (Garber et al 2004, Sanz et al 2006, Zhang et al 2006, Gomes et al 2008, Rodrigues et al 2008, Vasconcellos et al 2008.…”

Section: Implications For the Conservation Of The Speciesmentioning

confidence: 98%

“…Given the implications of such processes for the maintenance of stocks, there is growing interest in the genetic structure of the populations of commercially important fish species (Garber et al 2004, Palstra et al 2007, Santa Brígida et al 2007, Rodrigues et al 2008, Silva-Oliveira et al 2008. These and other studies have generated an essential database for the development of systematic management strategies for fish stocks.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Population Structure of Lutjanus purpureus (Lutjanidae - Perciformes) on the Brazilian coast: further existence evidence of a single species of red snapper in the western Atlantic

Silva

Sampaio

Schneider

2012

An. Acad. Bras. Ciênc.

Self Cite

View full text Add to dashboard Cite

The present study focus on the mitochondrial control region to investigate phylogeographic patterns and population structure in Lutjanus purpureus, and to evaluate the genetic similarity between L. purpureus and L. campechanus. For the initial analysis, 810 base pairs sequence from control region were obtained from 239 specimens of L. purpureus collected from four localities off the Brazilian coast. The results revealed the presence of a single panmictic population characterized by high values of genetic diversity. The 299 base pairs hypervariable portion were used for the combined analysis of L. purpureus and L. campechanus, being 275 haplotypes identified in the 414 specimens. Phylogenetic tree and haplotype network did not indicate phylogeographic substructuring between the two species, but rather an intense intermingling of individuals. Considering their marked morphological similarity, the molecular data presented here indicate that only one species of red snapper exists in the western Atlantic.

show abstract

Section: Implications For the Conservation Of The Speciesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Population Structure of Lutjanus purpureus (Lutjanidae - Perciformes) on the Brazilian coast: further existence evidence of a single species of red snapper in the western Atlantic

Silva

Sampaio

Schneider

2012

An. Acad. Bras. Ciênc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Estos autores sugirieron que F. commersonii podría estar atravesando un cuello de botella. Otro caso similar fue observado por Rodrigues et al (2008) en Cynoscion acoupa. Los autores obtuvieron 43 haplotipos en 297 individuos, sugiriendo que podría deberse a la reducción del tamaño efectivo de la población.…”

Section: Resultados Y Discusiónunclassified

ESTUDIO COMPARATIVO DE LA VARIABILIDAD GENÉTICA DEL ZÚNGARO TIGRINUS - Brachyplatystoma tigrinum (Britski, 1981) Y DOS ESPECIES RELACIONADAS DE LA FAMILIA PIMELODIDAE

Mori-Marin¹,

Renno

Carvajal‐Vallejos

et al. 2012

Folia Amaz

View full text Add to dashboard Cite

RESUMENEn el presente trabajo se generaron los primeros resultados de la variabilidad genética de Brachyplatystoma tigrinum (Pimelodidae, Siluriformes) en la Amazonía peruana, comparándola con la variabilidad de otras dos especies de bagres de la familia Pimelodidae (B. rousseauxii y B. vaillantii). El análisis fue realizado a través del secuenciamiento nucleotídico de la región control del DNA mitocondrial (DNAmt) de 41 especímenes de B. tigrinum y 30 de cada especie a comparar (B. rousseauxii y B. vaillantii). El porcentaje de bases nucleotídicas en las tres especies fueron similares, siendo los valores de Adenina (A) y Timina (T) mayores que las de Citosina (C) y Guanina (G). El polimorfismo de DNA indicó que B. tigrinum presenta baja variabilidad genética (Haplótipos = 8, Hd = 0.527, π = 0.002) en comparación a B. rousseauxii y B. vaillantii (Haplótipos = 26, Hd = 0.986, π = 0.008; H = 27, Hd = 0.991, π = 0.016, respectivamente). Si consideramos la relación entre los valores de diversidad haplotípica y nucleotídica del DNAmt propuesto para teleósteos marinos, podemos clasificar a las especies comparativas (B. rousseauxii y B. vaillantii) como aquellas que poseen poblaciones estables, con grandes tamaños efectivos, elevado flujo de genes y amplia distribución geográfica. Mientras que B. tigrinum con sus reducidos valores de diversidad haplotípica y nucleotídica, podría estar reflejando que esta especie ha pasado por un reciente efecto de cuello de botella o un efecto fundador, que estaría causando pérdida de diversidad genética.PALABRAS CLAVE: Brachyplatystoma tigrinum, variabilidad genética, secuenciamiento, región control, Amazonía peruana. COMPARATIVE STUDY OF THE GENETIC VARIABILITY OF CATFISH TIGRINUSBrachyplatystoma tigrinum (Britski, 1981) AND TWO RELATED SPECIES OF THE PIMELODIDAE FAMILY ABSTRACTThe present study generated the first results of the genetic variability of Brachyplatystoma tigrinum (Pimelodidae, Siluriformes) in the Peruvian Amazon, comparing its variability with two other catfish species from the Pimelodidae family (B. rousseauxii and B. vaillantii). The analysis was done through nucleotide sequencing of the control region of the mitochondrial DNA of 41 specimens of B. tigrinum and 30 of each species to compare (B. rousseauxii and B. vaillantii). The percentage of nucleotide bases in the three species were similar, the values of adenine (A) and thymine (T) were greater than the values of cytosine (C) and guanine (G). The polymorphism of DNA indicated that B. tigrinum has low genetic variation (Haplotypes = 8, Hd = 0.527, π = 0.002) compared to B. rousseauxii and B. vaillantii (haplotypes = 26, Hd = 0.986, π = 0.008, H = 27, Hd = 0.991, π = 0.016, respectively). If we consider the relationship between the values of the diversity of haplotype and nucleotide of the mtDNA proposed to marine teleost, we can classify the compared species (B. rousseauxii y B. vaillantii) as those that have stable populations with large effective sizes, high gene flow and wide geographic distribution. While t...

show abstract

“…(Grant & Bowen, 1998;Lowe, Harris, & Ashton, 2004).A rapid population growth can enhance the retention of new mutations in the population (Grant & Bowen, 1998). High haplotype diversity and low nucleotide diversity has been reported in many marine organisms such as Cynoscionacoupa (Rodrigues et al, 2008), Architecuthis dux (Winkelmann et al, 2013) and Girellapunctata (Saito et al, 2008) that have undergone a severe demographic reduction.…”

Section: Discussionmentioning

confidence: 99%

Untitled

Lau¹,

Ransangan²,

Rodrigues³

2018

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

The Asian green mussel (Pernaviridis) is a bivalve species with a high economic value. The waters surrounding the Malaysian state of Sabah hosts a wide range of geographically distributed populations of P. viridis whose population structure is unknown. This study was conducted to elucidate the genetic diversity and population structure of Asian green mussel from six sites located along the coastline of Sabah based on the mitochondrial DNA control region (D-loop). The complete D-loop sequences of 197 individuals were recovered by amplification using PCR, followed by DNA sequencing. Interpretation of the results revealed that the P. viridis populations exhibited high haplotype diversity (H d =0.912±0.0002) and low nucleotide diversity (π=0.00890±0.00066). The AMOVA analysis showed  ST was 0.02322 (P value<0.05), which is indicative of low but significant structuring. Pairwise ST ranged from low to moderate indicating population differentiation. Five out of the fifteen population pairs showed significant population differentiation. Both AMOVA and pairwise  ST suggest there were significant population subdivisions in Asian green mussel population in Sabah. Although the Asian green mussel population in Sabah has gone through a severe mass mortality, evidence for genetic bottleneck was not detected. However, a smaller population size after a severe demographic reduction can cause the population become vulnerable. Thus, regular monitoring of Asian green mussel population is required to keep track of fluctuations in population size and composition. This study provided new population genetic information which is crucial for establishing fisheries management strategies for this species.

show abstract

Low levels of genetic diversity depicted from mitochondrial DNA sequences in a heavily exploited marine fish (Cynoscion acoupa, Sciaenidae) from the Northern coast of Brazil

Cited by 43 publications

References 17 publications

Population Structure of Lutjanus purpureus (Lutjanidae - Perciformes) on the Brazilian coast: further existence evidence of a single species of red snapper in the western Atlantic

Population Structure of Lutjanus purpureus (Lutjanidae - Perciformes) on the Brazilian coast: further existence evidence of a single species of red snapper in the western Atlantic

ESTUDIO COMPARATIVO DE LA VARIABILIDAD GENÉTICA DEL ZÚNGARO TIGRINUS - Brachyplatystoma tigrinum (Britski, 1981) Y DOS ESPECIES RELACIONADAS DE LA FAMILIA PIMELODIDAE

Untitled

Contact Info

Product

Resources

About