Control region haplotype variation in the central Mediterranean common sole indicates geographical isolation and population structuring in Italian stocks

2002 ◽  
Vol 60 (6) ◽  
pp. 1459-1474 ◽  
Author(s):  
I. Guarnieo ◽  
S. Franzellitti ◽  
N. Ungaro ◽  
S. Tommasini ◽  
C. Piccinetti ◽  
...  
Keyword(s):  
Control Region ◽  
Geographical Isolation ◽  
Central Mediterranean ◽  
Haplotype Variation ◽  
Population Structuring ◽  
Control Region Haplotype ◽  
Common Sole

A new mtDNA control region haplotype from sea lamprey (Petromyzon marinus Linnaeus, 1758: Petromyzontiformes) collected off the Italian Adriatic coast

2019 ◽  
Vol 49 (6) ◽  
pp. 2917-2920
Author(s):  
Andrea Petetta ◽  
Tommaso Righi ◽  
Andrea Splendiani ◽  
Massimo Virgili ◽  
Massimo Giovannotti ◽  
...  
Keyword(s):  
Control Region ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Mtdna Control Region ◽  
Control Region Haplotype ◽  
Adriatic Coast

Evidence for geographical isolation of the early life stages of the white anglerfish, Lophius piscatorius, based on otolith microchemistry

2004 ◽  
Vol 84 (4) ◽  
pp. 827-830 ◽  
Author(s):  
S.C. Swan ◽  
P.J. Wright ◽  
D.A. Woodroffe ◽  
J.D.M. Gordon ◽  
T. Shimmield
Keyword(s):  
Early Life ◽  
Early Life History ◽  
Life Stages ◽  
Early Life Stages ◽  
Geographical Isolation ◽  
Genetic Structuring ◽  
North East ◽  
The North ◽  
Population Structuring ◽  
Limited Exchange

Concentrations of elements in the sagittal otoliths of juvenile white anglerfish (Lophius piscatorius) from five locations in the north-east Atlantic were measured to test for evidence of segregation in the early life stages. The concentrations of some elements, notably copper, were different between locations. As such, the results suggest limited exchange between locations during some period of the early life history. The relevance of these results to our understanding of population structuring is discussed in relation to recent information on anglerfish movements and genetic structuring.

Two new Saxifraga species (Saxifragaceae) endemic to Tuscan Archipelago (central-northern Mediterranean, Italy)

Phytotaxa ◽  
2016 ◽  
Vol 284 (2) ◽  
pp. 108 ◽  
Author(s):  
MAIRO MANNOCCI ◽  
GIULIO FERRETTI ◽  
VIVIANO MAZZONCINI ◽  
GRAZIANA FIORINI ◽  
BRUNO FOGGI ◽  
...  
Keyword(s):  
Morphological Characters ◽  
Geographical Isolation ◽  
Chromosome Counts ◽  
Central Mediterranean ◽  
Plant Populations ◽  
North Central ◽  
Qualitative And Quantitative ◽  
The North ◽  
Form Part ◽  
Italian Apennines

We investigated the populations of Saxifraga ser. Saxifraga (Saxifragaceae) on the islands of Capraia, Elba and Montecristo. These Italian islands form part of the Tuscan Archipelago group, in the north-central Mediterranean. The plant populations we report lie on the boundary between the ranges of the two species: S. granulata and S. corsica. We analysed specimens from the islands of Capraia, Montecristo and Elba, together with specimens from the Italian Apennines, and others from the islands of Corsica and Sardinia. The study focused on both the qualitative and quantitative morphological and karyological traits of these plants. The populations from the Tuscan Archipelago can be assigned to two distinct groups. The Elba population is morphologically close to S. granulata subsp. granulata. On the other hand, Capraia and Montecristo populations belong to the group of S. granulata s.l. and are indeed very similar to S. corsica but, at the same time, they show some distinctive morphological characters. The karyological studies show low chromosome counts (2n = 20–22) for the Elba and Apennine populations and higher chromosome counts (2n = 44–56) for the Capraia and Montecristo ones - similar to S. corsica. Based on these results, and on the geographical isolation of these populations, we describe two new taxa for Capraia and Montecristo, S. caprariae and S. montis-christi, respectively. The Elba population can be attributed to S. granulata subsp. granulata. Lastly, we provide an identification key for the Italian taxa belonging to S. ser. Saxifraga.

Population structuring of Channa striata from Indian waters using control region of mtDNA

2019 ◽  
Vol 30 (3) ◽  
pp. 414-423 ◽  
Author(s):  
Vishwamitra Singh Baisvar ◽  
Mahender Singh ◽  
Ravindra Kumar
Keyword(s):  
Control Region ◽  
Indian Waters ◽  
Population Structuring ◽  
Channa Striata

Mitochondrial DNA control region haplotype and haplogroup diversity in South Eastern Turkey

2016 ◽  
Vol 24 ◽  
pp. 176-179 ◽  
Author(s):  
Ayse Serin ◽  
Husniye Canan ◽  
Behnan Alper ◽  
Mete Korkut Gulmen ◽  
Bettina Zimmermann ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Control Region ◽  
Mitochondrial Dna Control Region ◽  
South Eastern ◽  
Eastern Turkey ◽  
Control Region Haplotype

Genetic analysis of a population crash in brush-tailed rock-wallabies (Petrogale penicillata) from Jenolan Caves, south-eastern Australia

2004 ◽  
Vol 31 (3) ◽  
pp. 229 ◽  
Author(s):  
Mark D. B. Eldridge ◽  
Catherine Rummery ◽  
Cherylin Bray ◽  
Kyall R. Zenger ◽  
Teena L. Browning ◽  
...  
Keyword(s):  
Control Region ◽  
Empirical Studies ◽  
Allelic Diversity ◽  
Effective Population ◽  
Population Crash ◽  
Eastern Australia ◽  
Before And After ◽  
Theoretical Predictions ◽  
Control Region Haplotype ◽  
Microsatellite Alleles

Although the theoretical effects of a severe reduction in effective population size (i.e. a bottleneck) are well known, relatively few empirical studies of bottlenecks have been based on extensive temporally spaced samples of a population both before and after a bottleneck. Here we describe the results of one such study, utilising the Jenolan Caves (JC) population of the brush-tailed rock-wallaby (Petrogale penicillata). When first sampled in 1985 (n = 20) the JC population comprised ~90 individuals. Subsequently the population crashed, and by 1992 only seven individuals remained. In 1996 the entire population (n = 10) was again sampled. Genetic diversity in the pre- and post-crash JC population was compared using 11 polymorphic microsatellite loci and PCR–SSCP analysis of the mitochondrial DNA control region. Only a single unique control region haplotype was detected in the pre- and post-crash JC population, although variant haplotypes were present in other P. penicillata populations. Of the 35 microsatellite alleles present in the pre-crash population, nine (26%) were lost during the bottleneck. The average number of rare alleles declined by 72%, allelic diversity was reduced by 30% and average heterozygosity declined by 10%. These observations are consistent with theoretical predictions. Additional analyses revealed that a P.�penicillata female at Wombeyan Caves was the only survivor of a 1990/91 reintroduction attempt using animals from JC. Of the microsatellite alleles detected in this female, 21% (4/19) were no longer present in the post-crash JC population. Furthermore, the genetic profiles of animals from the recently discovered Taralga population indicate that they are not derived from JC stock, but represent a threatened remnant of a hitherto undetected natural P. penicillata population.

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