Discriminant analysis of four cultured populations of the pearl oyster, <i>Pinctada fucata martensii</i>, using morphology and single‐nucleotide polymorphism markers

Huang, Jing; Xu, Meng; He, Maoxian

doi:10.1111/jwas.12678

Cited by 2 publications

(1 citation statement)

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“…This may contribute contribute to conservation and sustainability of wild stocks (Mukhopadhyay & Bhattacharjee, 2014). Determination of genetic variability and population structure could be performed using molecular markers (An et al., 2012; Deepak & Harikrishnan, 2016; Huang et al., 2019; Lakra et al., 2013; Moghim et al., 2013; Mukherjee & Mandal, 2009; Zhong et al., 2017). Studies using nucleotide sequences representing typical barcode gene regions provided a new dimension in molecular taxonomy (Deepak & Harikrishnan, 2016; Hebert et al., 2003; Jose et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Morphological and Genetic variations in the natural populations of Carinotetraodon travancoricus

2021

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Carinotetraodon travancoricus or Malabar puffer fish is an endemic species described from rivers originating from the Western Ghats in South India. This species is captured extensively as an aquarium fish and is having substantial demand in global markets. However, being prone to overfishing and impacts of anthropogenic alterations in its habitats, IUCN has categorized it as a threatened/vulnerable species. Since, knowledge on variability of wild populations could help in their conservation and management, morphometric and genotypic analyses were carried out in natural populations of C. travancoricus inhabiting two geographically separated rivers Pamba and Chalakkudy. Mean values of eleven length parameters measured in 456 males and 439 females inhabiting these rivers revealed significant difference (ANOVA, F = 10.2 p < .001) between sexes and between females inhabiting two rivers. Principal component analysis revealed two factors in males and three factors in females, explained variance of 83.62% and 89.94% in respective sexes. Results of both PCA and discriminant function analysis indicated perceptibly high degree of separation between individuals inhabiting the two rivers. A total of 25 COI sequences were generated from C. travancoricus collected from rivers Pamba (n = 14) and Chalakkudy (n = 11). Sequence alignment revealed considerable base substitutions between samples from both rivers, indicating possibility of population differences. AMOVA analysis also provided significant Fst value (0.622; p‐value .00) in support of population difference between individuals of both rivers. Interpopulation genetic distance reached upto 2.50%, high enough to confirm genetic diversity among individuals, revealing perceptible population events within this species. The present results indicated high degree of population difference between C. travancoricus inhabiting geographically separated rivers Pamba and Chalakkudy as evidenced from both morphometric and genotypic analyses.

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Section: Introductionmentioning

confidence: 99%

Morphological and Genetic variations in the natural populations of Carinotetraodon travancoricus

2021

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Genetic Signature of Pinctada fucata Inferred from Population Genomics: Source Tracking of the Invasion in Mischief Reef of Nansha Islands

Shan

Wang

et al. 2023

Biology

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Among the anthropogenic stresses that marine ecosystems face, biological invasions are one of the major threats. Recently, as a result of increasingly intense anthropogenic disturbance, numerous marine species have been introduced to their non-native ranges. However, many introduced species have uncertain original sources. This prevents the design and establishment of methods for controlling or preventing these introduced species. In the present study, genomic sequencing and population genetic analysis were performed to detect the geographic origin of the introduced Pinctada fucata population in the Mischief Reef of the South China Sea. The results of population genetic structure analysis showed a close relationship between the Mischief Reef introduced population and the Lingshui population, indicating that Lingshui may be the potential geographical origin. Furthermore, lower heterozygosity and nucleotide diversity were observed in the introduced population in Mischief Reef, indicating lower genetic diversity than in other native populations. We also identified some selected genomic regions and genes of the introduced population, including genes related to temperature and salinity tolerance. These genes may play important roles in the adaptation of the introduced population. Our study will improve our understanding of the invasion history of the P. fucata population. Furthermore, the results of the present study will also facilitate further control and prevention of invasion in Mischief Reef, South China Sea.

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Discriminant analysis of four cultured populations of the pearl oyster, Pinctada fucata martensii, using morphology and single‐nucleotide polymorphism markers

Cited by 2 publications

References 25 publications

Morphological and Genetic variations in the natural populations of Carinotetraodon travancoricus

Morphological and Genetic variations in the natural populations of Carinotetraodon travancoricus

Genetic Signature of Pinctada fucata Inferred from Population Genomics: Source Tracking of the Invasion in Mischief Reef of Nansha Islands

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