DayanandanDoleBawaEtAl1999

Référence

Dayanandan, S., Dole, J., Bawa, K. and Kesseli, R. (1999) Population structure delineated with microsatellite markers in fragmented populations of a tropical tree, Carapa guianensis (Meliaceae). Molecular Ecology, 8(10):1585-1592.

Résumé

Deforestation and selective logging in the tropics may have serious consequences on genetic processes in tropical tree populations, affecting long-term survival of a given species as well as tropical forest communities. Because understanding the effects of human-induced changes on genetic processes is of utmost importance in formulating sound conservation and management plans for tropical forest communities, we developed microsatellite or simple sequence repeat (SSR) markers for the tropical tree Carapa guianensis (Meliaceae) and assessed the polymorphism of SSRs in adult and sapling populations in a large contiguous forest and in selectively logged and fragmented forests. The number of alleles in polymorphic loci ranged between 4 and 28. No inbreeding was detected in saplings or adult cohorts, but the allelic richness was lower in the sapling cohort of the isolated fragment. Genetic distances, Nei's D and (??)2, and R(ST) values among saplings were greater than among adult cohorts, suggesting restriction of gene flow due to deforestation and habitat fragmentation. These SSR loci may be used to address many related questions regarding the population and conservation genetics of tropical trees.

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@ARTICLE { DayanandanDoleBawaEtAl1999,
    AUTHOR = { Dayanandan, S. and Dole, J. and Bawa, K. and Kesseli, R. },
    TITLE = { Population structure delineated with microsatellite markers in fragmented populations of a tropical tree, Carapa guianensis (Meliaceae) },
    JOURNAL = { Molecular Ecology },
    YEAR = { 1999 },
    VOLUME = { 8 },
    PAGES = { 1585-1592 },
    NUMBER = { 10 },
    NOTE = { 09621083 (ISSN) Cited By (since 1996): 40 Export Date: 27 April 2007 Source: Scopus CODEN: MOECE doi: 10.1046/j.1365-294X.1999.00735.x Language of Original Document: English Correspondence Address: Kesseli, R.; Biology Department; University of Massachusetts Boston, MA 02125, United States; email: rick.kesseli@umb.edu References: Akkaya, M.S., Bhagwat, A.A., Cregan, P.B., Length polymorphisms of simple sequence repeat DNA in soybean (1992) Genetics, 132, pp. 1131-1139; Aldrich, P., Hamrick, J., Reproductive dominance of pasture trees in a fragmented tropical forest mosaic (1998) Science, 281, pp. 103-105; Bawa, K., Effects of deforestation and forest fragmentation on genetic diversity in tropical tree populations (1993) Genetic Conservation and Production of Tropical Forest Seed, pp. 10-16. , eds Drysdale R, John S, Yapa A, ASEAN-Canada Forest Tree Seed Centre, Chiang Mai, Thailand; Bernatzky, R., Tanksley, S., Genetics of actin related sequences in tomato (1986) Theoretical and Applied Genetics, 72, pp. 314-321; Chase, M., Kesseli, R., Bawa, K., Microsatellite markers for population and conservation genetics of tropical trees (1996) American Journal of Botany, 83, pp. 51-57; Chase, M., Moller, C., Kesseli, R., Bawa, K., Long distance gene flow patterns precisely characterized by simple sequence repeats in a fragmented tropical tree population (1996) Nature, 383, pp. 398-399; Clark, D.A., Clark, D.B., Life history of canopy and emergent trees in a neotropical rain forest (1992) Ecological Monographs, 62, pp. 315-344; Condit, R., Hubbell, S., Abundance and DNA sequence of twobase repeat regions in tropical tree genomes (1991) Genome, 34, pp. 66-71; Dayanandan, S., Bawa, K., Kesseli, R., Conservation of microsatellites among tropical trees (Leguminosae) (1997) American Journal of Botany, 84, pp. 1658-1663; Dow, B., Ashley, M., Microsatellite analysis of seed dispersal and parentage of saplings in bur oak, Quercus macrocarpa (1996) Molecular Ecology, 5, pp. 615-627; Echt, C.S., May-Marquardt, P., Hseih, M., Zahorchak, R., Characterization of microsatellite markers in eastern white pine (1996) Genome, 39, pp. 1102-1108; Goldstein, D., Linares, A.R., Cavalli-Sforza, L.L., Feldman, M., Genetic absolute dating based on microsatellites and the origin of modern humans (1995) Proceedings of the National Academy of Science of the USA, 92, pp. 6723-6727; Goodman, S., RST CALC: A collection of computer programs for calculating unbiased estimates of genetic differentiation and determining their significance for microsatellite data (1997) Molecular Ecology, 6, pp. 881-885; Hall, P., Orrell, L., Bawa, K., Genetic diversity and mating system in a tropical tree, Carapa guianensis (1994) American Journal of Botany, 81, pp. 1104-1111; Hamrick, J., Genetic diversity and conservation in tropical forests (1993) Proceedings, International Symposium on Genetic Conservation and Production of Tropical Forest Seed, pp. 1-9. , eds Drysdale RM, John SET, Yapa AC, ASEAN-Canada Forest Tree Seed Center, Chiang Mai, Thailand; Kijas, J., Fowler, J.C.S., Thomas, M.R., An evaluation of sequence tagged microsatellite site markers for genetic analysis within citrus and related species (1995) Genome, 38, pp. 349-355; Lagercrantz, U., Ellegren, H., Anderson, L., The abundance of various polymorphic microsatellite motifs differs between plants and vertebrates (1993) Nucleic Acids Research, 21, pp. 1111-1115; Laikre, L., Ryman, N., Effects on intraspecific biodiversity from harvesting and enhancing natural populations (1996) Ambio, 25, pp. 504-509; Levine, I., Cheng, H., Bacter, J., Hillel, J., Turkey microsatellite DNA loci amplified by chicken specific primers (1995) Animal Genetics, 26, pp. 107-110; Lieberman, D., Lieberman, M., Forest tree growth and dynamics at La Selva, Costa Rica (1969-82) (1987) Ecology, 3, pp. 347-358; MacHargue, L.A., Hartshorn, G.S., Campa guianensis (1983) Costa Rican Natural History, pp. 206-207. , ed. 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    ABSTRACT = { Deforestation and selective logging in the tropics may have serious consequences on genetic processes in tropical tree populations, affecting long-term survival of a given species as well as tropical forest communities. Because understanding the effects of human-induced changes on genetic processes is of utmost importance in formulating sound conservation and management plans for tropical forest communities, we developed microsatellite or simple sequence repeat (SSR) markers for the tropical tree Carapa guianensis (Meliaceae) and assessed the polymorphism of SSRs in adult and sapling populations in a large contiguous forest and in selectively logged and fragmented forests. The number of alleles in polymorphic loci ranged between 4 and 28. No inbreeding was detected in saplings or adult cohorts, but the allelic richness was lower in the sapling cohort of the isolated fragment. Genetic distances, Nei's D and (??)2, and R(ST) values among saplings were greater than among adult cohorts, suggesting restriction of gene flow due to deforestation and habitat fragmentation. These SSR loci may be used to address many related questions regarding the population and conservation genetics of tropical trees. },
    KEYWORDS = { Conservation genetics Deforestation Gene flow La Selva Royal Mahogany Simple sequence repeats (SSR) microsatellite DNA population structure Carapa guianensis },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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