TY - JOUR
T1 - Establishing the identity and assessing the dynamics of invasion in the Mediterranean Sea by the dusky sweeper, Pempheris rhomboidea Kossmann & Räuber, 1877 (Pempheridae, Perciformes)
AU - Azzurro, Ernesto
AU - Goren, Menachem
AU - Diamant, Ariel
AU - Galil, Bella
AU - Bernardi, Giacomo
N1 - Publisher Copyright:
© 2014, Springer International Publishing Switzerland.
PY - 2015/3
Y1 - 2015/3
N2 - We investigate the genetic diversity of the sweeper Pempheris, a biological invader that entered the Mediterranean Sea via the Suez Canal. Two mitochondrial regions and one nuclear region were sequenced and topological reconstructions investigated from samples collected from the eastern Mediterranean Sea, Red Sea and three Indo-Pacific localities. Morphological and molecular analyses assigned samples from this study to three distinct species of Pempheris in the Red Sea (P. flavicyla, P. rhomboidea, and P. tominagai) and confirmed a misidentification of the Mediterranean sweepers, previously identified as P. vanicolensis and now recognized as P.rhomboidea. Pempheris rhomboidea clustered in a single clade including specimens from Madagascar and South Africa. Similarly to most other studied Lessepsian bioinvaders, no evidence of a genetic bottleneck in its invasive Mediterranean population was found. Yet, lowered gene flow levels were observed between Red Sea and Mediterranean populations in this species. These findings highlight the importance of molecular tools to the proper identification of morphologically challenging alien organisms and contribute to the understanding of the dynamics of Lessepsian invasions.
AB - We investigate the genetic diversity of the sweeper Pempheris, a biological invader that entered the Mediterranean Sea via the Suez Canal. Two mitochondrial regions and one nuclear region were sequenced and topological reconstructions investigated from samples collected from the eastern Mediterranean Sea, Red Sea and three Indo-Pacific localities. Morphological and molecular analyses assigned samples from this study to three distinct species of Pempheris in the Red Sea (P. flavicyla, P. rhomboidea, and P. tominagai) and confirmed a misidentification of the Mediterranean sweepers, previously identified as P. vanicolensis and now recognized as P.rhomboidea. Pempheris rhomboidea clustered in a single clade including specimens from Madagascar and South Africa. Similarly to most other studied Lessepsian bioinvaders, no evidence of a genetic bottleneck in its invasive Mediterranean population was found. Yet, lowered gene flow levels were observed between Red Sea and Mediterranean populations in this species. These findings highlight the importance of molecular tools to the proper identification of morphologically challenging alien organisms and contribute to the understanding of the dynamics of Lessepsian invasions.
KW - Lessepsian bioinvasion
KW - Mediterranean
KW - Pempheridae
KW - Pempheris
KW - Red Sea
UR - http://www.scopus.com/inward/record.url?scp=84925539928&partnerID=8YFLogxK
U2 - 10.1007/s10530-014-0836-5
DO - 10.1007/s10530-014-0836-5
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AN - SCOPUS:84925539928
SN - 1387-3547
VL - 17
SP - 815
EP - 826
JO - Biological Invasions
JF - Biological Invasions
IS - 3
ER -