LANDRACES A Valuable Source of
Genes for Plant
Breeding
Presented By:
Mudra Pandeya
Paper:
RPSBOTO502 1
What are Landraces?
A traditional variety with a high capacity to tolerate biotic
and abiotic stresses, resulting in high-yield stability and
an intermediate yield level under a low-input agricultural
system.
derived from Cleveland et al., 2000.
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What are Landraces?
Mexican Maize landraces
Sorghum landraces in Adilabad District, Andhra Pradesh
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A dive into the past
• Domestication of wild plants
• Natural and artificial selection
• Desirable characteristics
• Seed exchange programs
• Outcome
• Endemism
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Types of Landraces
1. Autochthonous: Endemic to a region.
2. Allochthonous: Introduced from another
region and then becoming locally adapted.
3. Primary: Never been subject to formal
breeding.
4. Secondary: Cultivated from formal breeding
program.
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Plant breeding
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Mechanism
SNP Mechanism
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Importance
• Biotic and abiotic stress tolerance
• Phenotypic diversity
• Genotypic diversity
• Adaptability
• Yield stability
Threats
• Genetic erosion
• Seed degradation
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Case Study
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Case Study
10
Case Study
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References
• Azeez, M., Adubi, A. and Durodola, F. (2018). Landraces and crop genetic improvement.
Rediscovery of Landraces as a Resource for the Future. 1: 1-19.
• Caldu-Primo, J., Mastretta-Yanes, A., Wegier, A. and Pin͂e͂ ro, D. (2017). Finding a needle in a
haystack: Distinguishing Mexican maize landraces using a small number of SNPs. Frontiers in
Genetics. 8:45.
• Iglesias, M. and Grzelczak, M. (2020). Using gold nanoparticles to detect single-nucleotide
polymorphisms: toward liquid biopsy. Beilstein Journal of Nanotechnology. 11: 263-284.
• Kang, K. and Cho, Y. (2023) Genetic Research and Plant Breeding. Genes. 14(51): 1-7.
• Lazaridi, E., Kapazoglou, A., Gerakari, M., Kleftogianni, K., Passa, K., Sarri, E., Papasotiropoulos, V.,
Tani, E. and Bebeli, P. (2024). Crop landraces and indigenous varieties: a valuable source of genes
for plant breeding. Plants. 13(758): 1-23.
• Newton, A., Akar, T., Baresel, J., Bebeli, P., Bettencourt, E., Bladenopoulos, K., Czembor, J.,,
Fasoula, D., Katsiotis, A., Koutis, K., et al. Cereal landraces foe sustainable agriculture. A review.
Agronomy for Sustainable Dvelopment. 30(2):237-269.
• Pandravada, S., Sivaraj, N., Jairam, R., Prasanthi, Y., Chakrabarty, S., Ramesh, P., Bisht, I. and
Pareek, S. (2013). Sorghum landraces patronized by tribal communities in Adilabad district, Andhra
Pradesh. Indian Journal of Traditional Knowledge. 12(3): 465-471.
• Puneeth, G., Gowthami, R., Katral, A., Laxmisha, K., Vasudeva, R., Singh, G. and Archak, S. (2024).
On-farm crop diversity, conservation, importance and value: a case study of landraces from
Western Ghats of Karnataka, India. Nature Portfolio. 14:10712.
• Villa, T., Maxted, N., Scholten, M. and Ford-Lloyd, B. (2006). Defining and identifying crop
landraces. Plant Genetic Resources. 3(3): 373-384.
• Zeven, A. (1998). Landraces: A review of definitions and classifications. Euphytica. 104: 127-139.
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THANK
YOU
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