Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12955/2451
Título : Genetic diversity and population structure of the Peruvian Andean legume, tarwi (Lupinus mutabilis), with high quality SNPs
Autor : Huaringa Joaquin, Amelia
Saldaña Serrano, Carla Lizet
Saravia Navarro, David
García Bendezú, Sady
Rodriguez Grados, Pedro
Salazar Coronel, Wilian
Camarena, Felix
Injante Silva, Pedro Hugo
Arbizu Berrocal, Carlos Irvin
Fecha de publicación : 19-ene-2023
Publicado en: Preprints
Resumen : Lupinus mutabilis Sweet (Fabaceae), “tarwi” or “chocho”, is an important grain legume in the Andean region. In Peru, studies on tarwi have mainly focused on morphological features; however, they have not been molecularly characterized. Currently, it is possible to explore the genetic parameters of plants with reliable and modern methods such as genotyping by sequencing (GBS). Here, for the first time, we used single nucleotide polymorphism (SNP) markers to infer the genetic diversity and population structure of 89 accessions of tarwi from nine Andean regions of Peru. A total of 5922 SNPs distributed along all chromosomes of tarwi were identified. STRUCTURE analysis revealed that this crop is grouped into two clusters. A dendrogram was generated using the UPGMA clustering algorithm and, like the principal coordinate analysis (PCoA), it showed two groups that correspond to the geographic origin of the tarwi samples. AMOVA showed a reduced variation between clusters (7.59%) and indicated that variability within populations is 92.41%. Population divergence (Fst) between clusters 1 and 2 revealed low genetic difference (0.019). We also detected a negative Fis for both populations, demonstrating that, like other Lupinus species, tarwi also depends on cross-pollination. SNP markers were powerful and effective for the genotyping process in this germplasm. We hope that this information is the beginning of the path towards a modern genetic improvement and conservation strategies of this important Andean legume.
Palabras clave : Fabaceae
Bioinformatics
Molecular markers
Neglected crop
Genomics
metadata.dc.subject.agrovoc: Fabaceae
Bioinformatics
Genetic markers
Genomics
Genetic diversity (as resource)
Lupinus mutabilis
Single nucleotide polymorphism
Editorial : MDPI
URI : https://hdl.handle.net/20.500.12955/2451
metadata.dc.identifier.doi: https://doi.org/10.20944/preprints202301.0345.v1
ISSN : 2310-287X
metadata.dc.subject.ocde: https://purl.org/pe-repo/ocde/ford#4.04.01
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