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Genetic variation in mahoganies: its importance, capture and utilization

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Mahoganies (Swietenia spp.; Meliaceae) are amongst the most economically important tropical hardwoods, and yet little information exists concerning their patterns of genetic variation. The characterization of this variation is essential for defining more accurately the conservation status of mahogany populations, and for their economic utilization. The loss of genetic variation through deforestation may be critical for these species, which are highly susceptible to pest attacks when grown in plantations. This paper assesses the current state of knowledge concerning the extent of genetic variation in mahoganies, and highlights its potential importance. It is suggested that any conservation strategy developed for mahoganies should include a genetic selection and improvement programme as well as the protection of natural stands in situ. Techniques by which particular genotypes may be captured for ex situ conservation are briefly described.

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Authors and Affiliations

  1. Institute of Terrestrial Ecology (ITE), Bush Estate, EH26 0QB, Penicuik, Midlothian, Scotland, UK

    Adrian C. Newton & Roger R. B. Leakey

  2. Proyecto Mejoramiento Genético, Centro Agronomico Tropical de Investigacion y Enseñanza (CATIE), Turrialba, Costa Rica

    J. Francisco Mesén

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  1. Adrian C. Newton
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  2. Roger R. B. Leakey
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  3. J. Francisco Mesén
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Newton, A.C., Leakey, R.R.B. & Mesén, J.F. Genetic variation in mahoganies: its importance, capture and utilization. Biodivers Conserv 2, 114–126 (1993). https://doi.org/10.1007/BF00056128

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