Citogenética comparativa de Physalis peruviana en tres poblaciones cultivadas de Cajamarca, Perú

Yajahaira Carbajal; Henry Bonilla; María Siles-Vallejos; Alberto López

doi:10.15381/rpb.v28i2.20462

Comparative cytogenetics of Physalis peruviana from three cultivated populations from Cajamarca, Peru

Authors

Yajahaira Carbajal Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Grupo de Investigación en Recursos Genéticos, Lima, Perú. https://orcid.org/0000-0003-2903-3909
Henry Bonilla Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Grupo de Investigación en Recursos Genéticos, Lima, Perú. https://orcid.org/0000-0002-0595-2671
María Siles-Vallejos Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Grupo de Investigación en Recursos Genéticos, Lima, Perú. https://orcid.org/0000-0003-4956-8310
Alberto López Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Grupo de Investigación en Recursos Genéticos, Lima, Perú. https://orcid.org/0000-0001-6070-5836

DOI:

https://doi.org/10.15381/rpb.v28i2.20462

Keywords:

Physalis peruviana, Aguaymanto, chromosome number, chromosomal morphology, ploidy, somatic aneuploidy

Abstract

In this work, we characterized cytogenetically Physalis peruviana “aguaymanto” and cultivated populations of the Cajamarca region: San Pablo, Celendín and Cajabamba are compared. The most frequent chromosomal number in the three populations was 2n = 4x = 48 with frequencies of 60, 50 and 34% in San Pablo, Celendín and Cajabamba respectively. Few cases of somatic aneuploidy were found. Our results let distinguish the populations by its karyotypic formula 17m + 4sm + 3t, 24m and 20m + 2sm + 2t (San Pablo, Celendín and Cajabamba respectively). Karyotypes were characterized by the total length of the haploid complement (HCL) and the indices of symmetry (S%), asymmetry (A) and intra and interchromosomal asymmetry (A1 and A2). The highest value of HCL was described in San Pablo. Celendín presented the highest degree of symmetry (S% = 53.226 and A = 0.177), while the karyotypes of San Pablo and Cajabamba were described as the most asymmetric. We concluded that the tetraploidy is most frequent condition; although there is evidence of different chromosomal morphology between the three populations.

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Published

05/25/2021

Issue

Vol. 28 No. 2 (2021)

Section

Articles

License

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How to Cite

Carbajal, Yajahaira, Henry Bonilla, María Siles-Vallejos, and Alberto López. 2021. “Comparative Cytogenetics of Physalis Peruviana from Three Cultivated Populations from Cajamarca, Peru”. Revista Peruana De Biología 28 (2): e20462. https://doi.org/10.15381/rpb.v28i2.20462.