TY - JOUR

T1 - Exploring Genetic and Morphological Integrity across Ocean Basins: A Case Study of the Mesopelagic Shrimp Systellaspis debilis (Decapoda: Oplophoridae)

AU - Шапкина, Анна

AU - Кулагин, Дмитрий

AU - Хайтов, Вадим Михайлович

AU - Лунина, Анастасия

AU - Верещака, Александр

N1 - Shapkina A. et al. Exploring Genetic and Morphological Integrity across Ocean Basins: A Case Study of the Mesopelagic Shrimp Systellaspis debilis (Decapoda: Oplophoridae) //Diversity. – 2023. – Т. 15. – №. 9. – С. 1008.

PY - 2023/9/10

Y1 - 2023/9/10

N2 - Plankton communities often consist of cosmopolitan species with an extensive gene flowbetween populations. Nevertheless, populations of some plankton species are genetically structured,owing to various barriers such as ocean currents, hydrological fronts, and continents. Drivers thatcould explain the genetic structures of most mesopelagic species remain unknown on an ocean-basinscale, and our study aims to analyze the genetic and morphological differences between populationsof a cosmopolitan mesopelagic shrimp, Systellaspis debilis, from the Southern and Northern AtlanticOcean, and the Southwest Indian Ocean. We analyzed the ITS-1 and COI markers of 75 specimensand assessed the genetic integrity and within-species variability of these genes. We also coded32 morphological characteristics in 73 specimens, analyzed their variability, and assessed the correlationbetween morphological and genetic characteristics using a Redundancy analysis and Mantel test.Systellaspis debilis was genetically cohesive across the whole Atlantic and Southwest Indian Oceans,which is possibly a result of an intensive gene flow through ecological barriers, the resistance ofspecies to hydrological gradients, a purifying selection of mitochondrial genes, etc. In contrast, wefound significant morphological differences between populations from different regions, which mirrorsmorphological diversification and calls for further genomic approaches in order to understandthe basis of these variations and uncover potential local adaptations.

AB - Plankton communities often consist of cosmopolitan species with an extensive gene flowbetween populations. Nevertheless, populations of some plankton species are genetically structured,owing to various barriers such as ocean currents, hydrological fronts, and continents. Drivers thatcould explain the genetic structures of most mesopelagic species remain unknown on an ocean-basinscale, and our study aims to analyze the genetic and morphological differences between populationsof a cosmopolitan mesopelagic shrimp, Systellaspis debilis, from the Southern and Northern AtlanticOcean, and the Southwest Indian Ocean. We analyzed the ITS-1 and COI markers of 75 specimensand assessed the genetic integrity and within-species variability of these genes. We also coded32 morphological characteristics in 73 specimens, analyzed their variability, and assessed the correlationbetween morphological and genetic characteristics using a Redundancy analysis and Mantel test.Systellaspis debilis was genetically cohesive across the whole Atlantic and Southwest Indian Oceans,which is possibly a result of an intensive gene flow through ecological barriers, the resistance ofspecies to hydrological gradients, a purifying selection of mitochondrial genes, etc. In contrast, wefound significant morphological differences between populations from different regions, which mirrorsmorphological diversification and calls for further genomic approaches in order to understandthe basis of these variations and uncover potential local adaptations.

KW - Crustacea

KW - Decapoda

KW - biodiversity

KW - mesopelagic shrimps

KW - molecular analysis

KW - morphological analysis

KW - plankton communities

UR - https://www.mendeley.com/catalogue/aaab62b2-b2bd-3ca0-9cad-5e683170e39e/

U2 - 10.3390/d15091008

DO - 10.3390/d15091008

M3 - Article

VL - 15

JO - Diversity

JF - Diversity

SN - 1424-2818

IS - 9

M1 - 1008

ER -