Lack of allozyme and ISSR variation in the Rare endemic tree species, Berchemia berchemiaefolia (Rhamnaceae) in Korea

@article{Lee2003LackOA,
  title={Lack of allozyme and ISSR variation in the Rare endemic tree species, Berchemia berchemiaefolia (Rhamnaceae) in Korea},
  author={Seok Woo Lee and Yong-Mo Kim and W. Kim},
  journal={Annals of Forest Science},
  year={2003},
  volume={60},
  pages={357-360}
}
On fait en general l'hypothese que les especes rares ne disposent que d'une faible variabilite genetique pour differentes raisons : derive genetique, forte selection dans le sens de l'uniformite dans un nombre limite de milieux, depression due a la consanguinite et divers autres facteurs. Nous avons etudie la variabilite genetique de Berchemia berchemiaefolia, espece rare et en voie de disparition au niveau mondial, en examinant 14 loci d'allozyme et 281-SSR amplicon pour 111 individus… 

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References

SHOWING 1-10 OF 33 REFERENCES
Genetic variation in the extreme endemic Pedicularis furbishiae (Scrophulariaceae)
TLDR
No variation appeared at any of the loci, although this sample was sufficient to detect any variant alleles with a frequency of 5.2 percent or more with 95 percent probability, probably due to founder effects accompanying the original postglacial establishment and subsequent repeated episodes of population establishment and local extinction along the St. John.
Chloroplast DNA diversity among trees, populations and species in the California closed-cone pines (Pinus radiata, Pinus muricata and Pinus attenuata).
The amount, distribution and mutational nature of chloroplast DNA polymorphisms were studied via analysis of restriction fragment length polymorphisms in three closely related species of conifers,
Diversity and inheritance of inter-simple sequence repeat polymorphisms in Douglas-fir (Pseudotsuga menziesii) and sugi (Cryptomeria japonica)
TLDR
Because they employ longer primers than do RAPDs, have a high degree of polymorphism, conform well to Mendelian expectations, and do not require use of acrylamide gels for analysis, ISSRs may be useful markers for PCR-based genome maps and population studies of conifers.
Genetic diversity and the mating system of a rare Mexican pinon, Pinus pinceana, and a comparison with Pinus maximartinezii (Pinaceae).
TLDR
The equilibrium inbreeding coefficient (F(e)) calculated from t(m) was in good agreement with observed inbreeding coefficients, suggesting that weeping piñon may be near equilibrium with respect to inbreeding and selection against selfed trees.
Genetic variation at allozyme and RAPD markers in Pinus longaeva (Pinaceae) of the White Mountains, California.
TLDR
Despite the limited and fragmented distribution of bristlecone pine, its level of genetic diversity was comparable to that of other pines, but lower than that reported for eastern populations of Great Basin bristle cone pine.
Contrasting genetic diversity relationships are revealed in rice (Oryza sativa L.) using different marker types
TLDR
Investigations of the relationships revealed between rice groups using the two types of PCR-based marker led to investigations of their map positions using an intraspecific doubled haploid mapping population.
GENE DIVERSITY AND GENETIC STRUCTURE IN A NARROW ENDEMIC, TORREY PINE (PINUS TORREYANA PARRY EX CARR.)
  • F. Ledig, M. Conkle
  • Biology, Medicine
    Evolution; international journal of organic evolution
  • 1983
TLDR
This work chose to investigate how much variation might be preserved in conifers by observing a narrow endemic, Torrey pine (Pinus torreyana Parry ex Carr.), to contribute to an understanding of the biogeography of the California Channel Islands.
EVIDENCE FOR AN EXTREME BOTTLENECK IN A RARE MEXICAN PINYON: GENETIC DIVERSITY, DISEQUILIBRIUM, AND THE MATING SYSTEM IN PINUS MAXIMARTINEZII
TLDR
Mating system analysis indicated a significant but low level of selling; the multilocus outcrossing rate, tm, was 0.816; the mean of single locus estimates, ts, was smaller, perhaps suggesting mating among relatives, although the difference between tm and ts was not statistically significant.
Genetics of Plant Isozymes
TLDR
The discovery in many populations of relatively high levels of polymorphism at isozyme loci has forced a major reconsideration of evolutionary theory.
Ecological Studies on the Distribution, Structure and Maintenance Mechanism of Berchemia berchemiaefolia Forest
TLDR
The authors found a new habitat of Berchemia berchemiaefolia in the northeastern slope on Mt. Kumdansan located at Hajeok-ri, Cheongcheon-myeon, Koesan-gun, chungbuk province.
...
1
2
3
4
...