Variation of phenotypic traits in twelve bambara groundnut (vigna subterranea (L.) Verdc.) genotypes and Two F2 Bi-Parental Segregating Populations

Gao, Xiuqing; Bamba, Aliyu Siise Abdullah; Kundy, Aloyce Callist; Mateva, Kumbirai Ivyne; Chai, Hui Hui; Ho, Wai Kuan; Musa, Mukhtar; Mayes, Sean; Massawe, Festo

Abstract

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Underutilised species such as bambara groundnut (Vigna subterranea (L.) Verdc.) have the potential to contribute significantly to meeting food and nutritional needs worldwide. We evaluated phenotypic traits in twelve bambara groundnut genotypes from East, West and Southern Africa and Southeast Asia and two F2 bi-parental segregating populations derived from IITA-686 ×Tiga Nicuru and S19-3 ×DodR to determine phenotypic trait variation and their potential contribution to the development of improved crop varieties. All phenotypic traits in twelve genotypes were significantly influenced (p < 0.01) by genotypes. Principal component analysis (PCA) showed that PC1 accounted for 97.33% variation and was associated with four genotypes collected from East and Southern Africa. PC2 accounted for 2.48% of the variation and was associated with five genotypes collected from East, West and Southern Africa. Transgressive segregation for a number of traits was observed in the two F2 bi-parental populations, as some individual lines in the segregating populations showed trait values greater or less than their parents. The variability between twelve genotypes and the two F2 bi-parental segregating populations and the negative relationship between plant architectural traits and yield related traits provide resources for development of structured populations and breeding lines for bambara groundnut breeding programme.

Citation

Gao, X., Bamba, A. S. A., Kundy, A. C., Mateva, K. I., Chai, H. H., Ho, W. K., …Massawe, F. (2020). Variation of phenotypic traits in twelve bambara groundnut (vigna subterranea (L.) Verdc.) genotypes and Two F2 Bi-Parental Segregating Populations. Agronomy, 10(10), Article 1451. https://doi.org/10.3390/agronomy10101451

• Journal Article Type: Article
• Acceptance Date: Aug 22, 2020
• Online Publication Date: Sep 23, 2020
• Publication Date: Oct 1, 2020
• Deposit Date: Sep 23, 2020
• Publicly Available Date: Sep 23, 2020
• Journal: Agronomy
• Electronic ISSN: 2073-4395
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 10
• Issue: 10
• Article Number: 1451
• DOI: https://doi.org/10.3390/agronomy10101451
• Keywords: bambara groundnut; Bi-parental populations; plant architectural traits; yield related traits; plant breeding
• Public URL: https://nottingham-repository.worktribe.com/output/4920969
• Publisher URL: https://www.mdpi.com/2073-4395/10/10/1451