NDLI: Detection of hybrids between masu salmon Oncorhynchus masou masou and amago salmon O. m. ishikawae occurred in the Jinzu River using a random amplified polymorphic DNA technique

Content Provider	Springer Nature Link
Author	Yamazaki, Yuji Shimada, Nariko Tago, Yasuhiko
Copyright Year	2005
Abstract	Identification of masu salmon Oncorhynchus masou masou and amago salmon O. m. ishikawae was accomplished using a random amplified polymorphic DNA (RAPD) technique. Of 80 primers screened, three primers amplified subspecies-specific fragments (OPA11-1095 $^{}$, OPB5-1618$^{}$ and OPD5-2038 $^{*}$). Based on fragment patterns, 33 hybrids were detected among 150 upstream-migrating individuals in the Jinzu River, central Japan, a long-time habitat of masu salmon, to which amago salmon were recently introduced. All of the individuals examined in the 2000–2002 cohorts were identified as F $_{1}$ and F $_{x}$ as well as pure masu and amago forms. These results indicated continuing hybridization, the genetic pollution of the native masu salmon population by amago salmon possibly being a serious problem in the Jinzu River. Both standard length and body weight in F $_{1}$ hybrids tended to be less than in pure masu salmon. However, F $_{x}$ hybrids showed similar body sizes to masu salmon.
Starting Page	320
Ending Page	326
Page Count	7
File Format	PDF
ISSN	09199268
Journal	Fisheries Science
Volume Number	71
Issue Number	2
e-ISSN	14442906
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	backcross F$_{1}$ invading species random amplified polymorphic DNA — polymerase chain reaction upstream-migration Fish & Wildlife Biology & Management Freshwater & Marine Ecology Food Science
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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Production of androgenetic amago salmon Oncorhynchus masou ishikawae with dispermy fertilization

Mottled coloration of haploid-diploid and diploid-triploid mosaic amago salmon Oncorhynchus masou ishikawae

Genetic introgression between masu salmon Oncorhynchus masou masou and red spotted masu salmon Oncorhynchus masou ishikawae

Effectiveness of Stocking Large Sized Masu (Oncorhynchus masou masou) and Amago (O. m. ishikawae) Salmon Based on Levels of Angling Exploitation, Stocking Expenditure and Awareness of Anglers

Body size is the primary regulator affecting commencement of smolting in amago salmon Oncorhynchus masou ishikawae

Growth performance and physiological condition of F1 amago salmon Oncorhynchus masou ishikawae juveniles obtained from broodstock with selective breeding for growth on a low fish-meal diet

Selectively bred juvenile F2 amago salmon Oncorhynchus masou ishikawae fed a low fishmeal diet exhibit growth comparable to unselected juveniles fed a fishmeal-based diet

Effects of smolt size and timing of migration on recovery rate of wild masu salmon Oncorhynchus masou

Mottled coloration of haploid-diploid and diploid-triploid mosaic amago salmon Oncorhynchus masou ishikawae

Detection of hybrids between masu salmon Oncorhynchus masou masou and amago salmon O. m. ishikawae occurred in the Jinzu River using a random amplified polymorphic DNA technique

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