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In Situ conservation of rice genetic resources

Conservación in situ de las fuentes genéticas del arroz

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Abstract

The diversity of rice conserved ex situ is impressive from both cultivated and wild species. However, to ensure the genetic base of one of the world’s most important crops, a sound, complementary in situ conservation of rice genepools is necessary. This paper reviews habitat destruction, loss of traditional rice germplasm and limitations to ex situ conservation. Examples of in situ conservation of rice genepools are given based on the literature, herbarium specimens, as well as personal experience of the authors. Proposals for ways to enhance efforts to conserve these genetic resources in situ are given including priority setting, selection, design, management and monitoring in situ conservation sites. The need to harmonise such efforts, particularly with local needs and national priorities in conservation, is stressed.

Resumen

La diversidad ecológica, conservada ex situ en arroz es impresionante tanto para las especies cultivadas como para las silvestres. Sin embargo, para asegurar la base genetica de uno de los cultivos mas importante en el mundo, es necesario una cuidadosa conservación complementaria in situ del pooi genético. Este articulo, revisa la destrucción del habitat, las perdidas y limitaciones del germoplasma de arroz para su conservacion ex situ. Ejemplos de conservación de losfondos geneticos de arroz in situ sepresentan basandose en la literatura, especimenes de herbario asi como también en Ia experiencia personal de los autores. Propuestas para mejorar las tecnicas de conservacion, in situ de estas fuentes genéticas se incluyen, asi como también Ia necesidad de harmonizar tales esfuerzos, particularmente entre las necesidades locales y las prioridades nacionales.

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Authors and Affiliations

  1. Associate Geneticist and former Head, International Rice Research Institute, P.O. Box 933, Manila, Philippines

    Duncan A. Vaughan & Te-Tzu Chang

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  1. Duncan A. Vaughan
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  2. Te-Tzu Chang
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Vaughan, D.A., Chang, TT. In Situ conservation of rice genetic resources. Econ Bot 46, 368–383 (1992). https://doi.org/10.1007/BF02866507

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