Genetic Diversity of Sweet Potato (Ipomoea batatas) Genotypes Using Principal Component Analysis

Authors

  • Salawu, S. K., Otun A. A., Soladoye, A. M., Oyeyemi, S. K., and Ajulo, K. K. Ladoke Akintola University of Technology, Ogbomoso, Nigeria. Bioresources Development Centre Ilorin, National Biotechnology Research and Development Agency, Nigeria.

Keywords:

Sweet potato, genetic diversity, PCA, morphological traits, breeding.

Abstract

Sweet potato (Ipomoea batatas) is a nutritionally rich and agronomically versatile crop cultivated across tropical regions. This study evaluated 132 genotypes sourced from NACGRAB and the Ministry of Agriculture, Abeokuta, using Principal Component Analysis (PCA) to assess genetic diversity across 29 morphological and agronomic traits. PCA extracted nine principal components explaining 74.83% of total phenotypic variance. Cluster analysis revealed seven distinct genotype groups, with accessions G97, G56, G92, G26, G101, and G86 exhibiting unique agronomic profiles. These genotypes are recommended for breeding programs targeting yield optimization, pest resistance, and ecological adaptability.

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Published

24-09-2026

How to Cite

Salawu, S. K., Otun A. A., Soladoye, A. M., Oyeyemi, S. K., and Ajulo, K. K. (2026). Genetic Diversity of Sweet Potato (Ipomoea batatas) Genotypes Using Principal Component Analysis. NABDA JOURNAL OF BIOTECHNOLOGY RESEARCH, 5(5), 97–101. Retrieved from https://journals.nbrda.gov.ng/njbr/article/view/282

Issue

Vol. 5 No. 5 (2026): Special Issue 6: Proceedings of Bioresources Development Conference (BDC26): The Cross Link Between Bioresources And Biotechnology

Section

Articles

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