臺灣石(魚賓)(Acrossocheilus paradoxus)之族群遺傳結構

dc.contributor.author許桂菁zh_tw
dc.contributor.author王建平zh_tw
dc.contributor.author李信徹zh_tw
dc.contributor.author蔣鎮宇zh_tw
dc.date.accessioned2014-10-27T15:00:48Z
dc.date.available2014-10-27T15:00:48Z
dc.date.issued2000-06-??zh_TW
dc.description.abstract本研究係利用粒線體DNA控制區域探討台灣石□之族群遺傳結構。共檢測台灣三大地理區中十一條主要河川採取樣本,11個族群42個個體,結果顯示十一條河川的族群及個體間分子序列有相當之差異,且族群問(ΦST= 0.5680)及地理區間(ΦCT = 0.4110)已有顯著的遺傳分化。族群開之核苷酸歧異度(0.0112)及序列單型歧異度(0.97)均高。族群間的基因交流值(Nm)由0.28到40.00,基因交流值和地理距離呈現負相關(即isolation by distance)。 由MEGA重建之族群樹型圖(neighbor joining tree)得知,台灣石□族群在地理區階級具分化現象,可分為:北部、東北部(蘭陽溪、北勢溪、景美溪及內雙溪)一群;中部(頭前溪、後龍溪、大甲溪及濁水溪)一群;南部(曾文溪、高屏溪及東港溪)一群。經milllmum spanning network分析發現,濁水溪族群可能擁有台灣石□較為古老的基因型,台灣石□的遷徙路徑可能由中部地理區分別進入北部及南部。zh_tw
dc.description.abstractMitochondrial DNA control region sequences were used to assess the genetic structure of Acrossocheilus paradoxus populations. An hierarchical examination of populations in 11 major streams from three geographical regions using an analysis of molecular variance (AMOVA) indicated high genetic differentiation both among populations (ΦST = 0.5680) and among regions (ΦCT = 0.4110) . Limited migration largely contributed to the genetic differentiation. High nucleotide diversity (0.0112) and haplotype diversity (0.97) were detected among populations. The degree of gene flow was correlated with geographical distance between populations, a result consistent with limited dispersal being the primary determinant of genetic differentiation between populations. A Neighbor-Joining tree recovered by MEGA supported the pattern of isolation by distance and revealed a closer relationship between populations of central and south regions. A minimum spanning network based on nucleotide substitutions reflected migration routes from populations of central region to the north and south regions respectively.en_US
dc.identifier04805DD8-91B8-2AB2-DB6B-A952972C95B2zh_TW
dc.identifier.urihttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/6706
dc.language中文zh_TW
dc.publisher國立臺灣師範大學生命科學學系zh_tw
dc.publisherDepartment of Life Science, NTNUen_US
dc.relation35(1),13-23zh_TW
dc.relation.ispartof師大生物學報zh_tw
dc.subject.other臺灣石扝zh_tw
dc.subject.other族群分化zh_tw
dc.subject.other距離隔離zh_tw
dc.subject.other最小距離網zh_tw
dc.subject.otherAcrossocheilus paradoxusen_US
dc.subject.otherCyprinidaeen_US
dc.subject.otherGenetic differentiationen_US
dc.subject.otherIsolation by distanceen_US
dc.subject.otherMigrationen_US
dc.subject.otherMinimum spanning networken_US
dc.subject.othermtDNAen_US
dc.title臺灣石(魚賓)(Acrossocheilus paradoxus)之族群遺傳結構zh-tw
dc.title.alternativeThe Population Genetic Structure of Acrossocheilus paradoxus (Cyprinidae)zh_tw

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