title: Genetic isolation among the northwestern, southwestern and central-eastern Indian Ocean populations of the pronghorn spiny lobster Panulirus penicillatus.
abstract: The pronghorn spiny lobster Panulirus penicillatus is a highly valuable species which is widely distributed in Indo-West Pacific and Eastern Pacific regions. Mitochondrial DNA control region sequences (566-571 bp) were determined to investigate the population genetic structure of this species in the Indian Ocean. In total, 236 adult individuals of Panulirus penicillatus were collected from five locations in the Indian Ocean region. Almost all individuals had a unique haplotype. Intrapopulation haplotype (h) and nucleotide (π) diversities were high for each locality, ranging from h = 0.9986-1.0000 and π = 0.031593-0.043441. We observed distinct genetic isolation of population located at the northwestern and southwestern edge of the species range. Gene flow was found within localities in the central and eastern region of the Indian Ocean, probably resulting from an extended planktonic larval stage and prevailing ocean currents.
authors.affiliation: Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan. fadrynankeren@yahoo.com.
authors.forename: Muhamad Fadry
authors.initials: MF
authors.lastname: Abdullah
authors.affiliation: Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor 16680, Indonesia. alimuddin_alsani@yahoo.com.
authors.lastname: Alimuddin
authors.affiliation: Ministry of Fisheries and Agriculture, Malé 20125, Maldives. mohamedmuththalib@gmail.com.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Muththalib
authors.affiliation: Faculty of Marine Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. ajsalama@kau.edu.sa.
authors.forename: Adnan Jameel
authors.initials: AJ
authors.lastname: Salama
authors.affiliation: Faculty of Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan. imai@sci.u-ryukyu.ac.jp.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Imai
mesh_terms: D000818:Animals; D004272:DNA, Mitochondrial / Q000235:genetics; D051456:Gene Flow; D049810:Genetic Speciation; D014644:Genetic Variation; D005828:Genetics, Population; D006239:Haplotypes; D019156:Indian Ocean; D033521:Palinuridae / Q000235:genetics*; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial