Defining and identifying crop landraces

  title={Defining and identifying crop landraces},
  author={T. C. Camacho Villa and Nigel I. Maxted and Maria Scholten and Brian V. Ford-Lloyd},
  journal={Plant Genetic Resources},
  pages={373 - 384}
Awareness of the need for biodiversity conservation is now universally accepted, but most often recent conservation activities have focused on wild species. Crop species and the diversity between and within them has significant socioeconomic as well as heritage value. The bulk of genetic diversity in domesticated species is located in traditional varieties maintained by traditional farming systems. These traditional varieties, commonly referred to as landraces, are severely threatened by… 

Conservation beyond protected areas: The challenge of landraces and crop wild relatives

One effect of the Green Revolution has been the displacement of landraces and traditional livestock strains. Although humankind has historically cultivated more than 7000 species, 15 crops now

Toward an Evolved Concept of Landrace

A more inclusive definition of landraces is proposed, namely that they consist of cultivated varieties that have evolved and may continue evolving, using conventional or modern breeding techniques, in traditional or new agricultural environments within a defined ecogeographical area and under the influence of the local human culture.

Plant agrobiodiversity conservation and use in intensive farming systems: N-Italy as a case study.

Northern Italy is an area particularly suitable for the cultivation of different crops. It used to be characterized by a high agrobiodiversity. However, it is estimated that over the last decades,

Vegetable Landraces: The “Gene Banks” for Traditional Farmers and Future Breeding Programs

The historical role of landraces, genetic diversity, high physiological adaptability to specific local conditions in association with traditional farming systems, as well as the breeding perspectives and evaluation of genetic diversity based on molecular markers are analyzed.

Towards the Genomic Basis of Local Adaptation in Landraces

An overview of the opportunities and limitations offered by landraces’ genomics is presented and how rapid advances in DNA sequencing techniques, plant phenotyping, and recombinant DNA-based biotechnology encourage both the identification and the validation of the genomic signature of local adaptation in crop landracing are discussed.

Essential Role of Crop Landraces for World Food Security

Crop landraces throughout the world are rapidly being lost, due to increasingly more limited use by growers in many areas of the world, and lower amounts of field cultivation, multiplication and conservation by growers directly relates to the loss of this valuable genetic resource over time.

Agricultural Biodiversity in Southern Brazil: Integrating Efforts for Conservation and Use of Neglected and Underutilized Species

Brazil is one of the most biodiversity rich countries in the world, including a wealth of agricultural biodiversity in both wild and cultivated forms. This is particularly noticeable in southern

Cereal landraces genetic resources in worldwide GeneBanks. A review

Since the dawn of agriculture, cereal landraces have been the staples for food production worldwide, but their use dramatically declined in the 2nd half of the last century, replaced by modern

Exploring the population genetics of genebank and historical landrace varieties

It is suggested that the true identity of the genebank accessions is unclear and that historical seed collections should be a more appropriate material for the study of historical agriculture.

Crop Landraces: Present Threats and Opportunities for Conservation

Overall information generated may provide a framework to initiate different approaches for the crop improvement and there is a need for proper documentation of the information available on remedial measures to cope up with the stress mediated by gene flow to crop landraces.



In Situ Conservation of Landraces in Centers of Crop Diversity

Three cases of on-going maintenance of landraces by farmers who have also adopted high-input technology, including high yielding crop cultivars are presented, suggesting that on-farm conservation of landRaces can be decoupled from traditional farming practices.

Natural variation and its conservation.

  • O. Frankel
  • Geography, Medicine
    Basic life sciences
  • 1976
Because of the enormous genetic diversity between and within the local land races of crops evolved over long periods in diverse areas with traditional farming systems, they constitute a most valuable source of genetic materials for plant improvement.

The conservation of agrobiodiversity on-farm: questioning the emerging paradigm

The genetic diversity of traditional varieties of crops is the most economically valuable part of global biodiversity and is of paramount importance for future world crop production. The Biodiversity

Towards a methodology for on-farm conservation of plant genetic resources

This paper attempts to set on-farm conservation within the context of plant genetic resource conservation as a whole, to introduces a possible generalised model for the conservation of genetic diversity on- Farm and to promote debate around the science of on- farm conservation.

Landraces: A review of definitions and classifications

An autochthonous landrace is a variety with a high capacity to tolerate biotic and abiotic stress, resulting in a high yield stability and an intermediate yield level under a low input agricultural system.

Landraces in central Italy: where and why they are conserved and perspectives for their on-farm conservation

  • V. Negri
  • Biology
    Genetic Resources and Crop Evolution
  • 2004
Four hundred and twenty-seven landraces belonging to different plant species were found on-farm in central Italy during exploration and collecting missions carried out since 1981, finding their resistance/good productivity under difficult or harsh climatic conditions, traditional reasons or organoleptic peculiarities.

Locally based crop plant conservation

Conservation of cultivated plants or domesticated animals follows the same principles and concepts for naturally occurring biological resources as outlined elsewhere in this book. This chapter

Complementary conservation strategies

The challenge facing the world’s biological and conservation scientists is threefold: to classify the existing biological diversity; to halt the rate of ecosystem, habitat, species and genetic loss;

Do folk crop varieties have a role in sustainable agriculture

R ecently there has been increasing attention to the importance of biodiversity in agriculture (NRC 1993), especially for ecological sustainability (NRC 1992, Pimentel et al. 1992). The role of folk

Plant Genetic Conservation

Plant diversity sustains all animal life, and the genetic diversity within plants underpins global food security. This text provides a practical and theoretical introduction to the strategies and