Genetic Similarity among Endemic Arctic Char (Salvelinus alpinus) and Implications for Their Management

1981 ◽  
Vol 38 (1) ◽  
pp. 32-39 ◽  
Author(s):  
Irv Kornfield ◽  
Kenneth F. Beland ◽  
John R. Moring ◽  
Frederick W. Kircheis

Five isolated populations of landlocked Arctic char (Salvelinus alpinus) from eastern United States and Canada were compared electrophoretically with anadromous Arctic char from the Northwest Territories. Mean heterozygosity was relatively low (0.03) with allelic variation observed at 7 of the 26 isozyme loci examined. The Sunapee and blueback char of Maine, and the Quebec red char of Parc des Laurentides, Québec, were very similar (IN = 0.925–0.999). The genetic differences separating these eastern North American char are probably of limited evolutionary consequence. However, we consider it prudent to characterize these endemics as potentially threatened unique populations and suggest that conservative management is warranted.Key words: Salvelinus alpinus, endemic populations, electrophoresis, species management


1973 ◽  
Vol 30 (8) ◽  
pp. 1215-1220 ◽  
Author(s):  
P. McCart ◽  
P. Craig

Two isolated populations of Arctic char (Salvelinus alpinus) in spring-fed tributaries of the Canning River, Alaska, had meristic characters that corresponded to those of the Western Arctic–Bering Sea form of Arctic char. The two populations demonstrated slight differences in growth rates, age at maturity, longevity, and food habits. The fish were characterized by small size (maximum 235 mm), low growth rates, low fecundities (maximum 199 eggs), and annual spawning after maturity. Mature fish were darkly pigmented and parr marks were retained throughout life. The spawning season appeared to be sometime in November, when the eggs of mature females averaged 3.8 mm in diameter.



HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 620b-620 ◽  
Author(s):  
Doru Pamfil ◽  
R.H. Zimmerman ◽  
S.K. Naess ◽  
H.J. Swartz

RAPD analysis was performed on 44 species of Rubus. These species included representatives from seven of the 12 subgenera within the genus and several series within the Idaeobatus (raspberries) and Eubatus (blackberries) subgenera. For all species, up to five plants were initially analyzed by two 10-mer primers. The most heterozygous of these individuals was then analyzed using 13 additional primers. Wide band diversity exists among Rubus species; these differences were analyzed using the PHYLIP software program. These differences are repeatable, for example color sports of `Heritage' red raspberry produced identical banding patterns. The genetic similarity between eastern United States blackberries (Eubatus) and numerous species was compared to the ability of these same species to act as a suitable pollen parent for eastern blackberries. These data were used to construct a dendrogram of the subgenera studied here.



2018 ◽  
Vol 130 (1) ◽  
pp. 71-76
Author(s):  
E Lewisch ◽  
T Frank ◽  
H Soliman ◽  
O Schachner ◽  
A Friedl ◽  
...  


2020 ◽  
Vol 634 ◽  
pp. 175-197 ◽  
Author(s):  
LN Harris ◽  
DJ Yurkowski ◽  
MJH Gilbert ◽  
BGT Else ◽  
PJ Duke ◽  
...  




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