Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites

Genetic diversity is key for breeding population development, hybrid breeding, heterotic grouping and genetic analysis, among others. The objective of this study was to examine genetic interrelationships among elite sorghum genotypes bred for resistance to Striga hermonthica Del. Benth and S. asiati...

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Main Authors: Athenkosi Makebe, Hussein Shimelis, Admire I. T. Shayanowako
Format: Article
Language:English
Published: Taylor & Francis Group 2021-08-01
Series:Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
Subjects:
Online Access:http://dx.doi.org/10.1080/09064710.2021.1957142
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author Athenkosi Makebe
Hussein Shimelis
Admire I. T. Shayanowako
author_facet Athenkosi Makebe
Hussein Shimelis
Admire I. T. Shayanowako
author_sort Athenkosi Makebe
collection DOAJ
description Genetic diversity is key for breeding population development, hybrid breeding, heterotic grouping and genetic analysis, among others. The objective of this study was to examine genetic interrelationships among elite sorghum genotypes bred for resistance to Striga hermonthica Del. Benth and S. asiatica (L.) Kuntze and compatible with a biological control agent Fusarium oxysporum f. sp. strigae (FOS) against Striga using 22 polymorphic simple sequence repeat (SSR) or microsatellite markers. The number of alleles per locus detected by the markers varied from 2 to 7 with a mean value of 4.23. The polymorphic information content (PIC) of the SSR markers ranged from 0.15 to 0.84 with a mean of 0.57 showing moderate discriminatory power of the primers. The neighbour-joining clustering algorithm classified the genotypes into three main groups, revealing narrow to moderate variations existing among the test genotypes. Overall, the genetic diversity revealed by the study will be useful for designed crosses and pyramiding of broad-based resistance genes to control Striga for sustainable sorghum production.
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spelling doaj.art-bc8dfd0ce59d44c9aad90744b517aa0c2023-09-15T10:26:27ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132021-08-0171989990610.1080/09064710.2021.19571421957142Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellitesAthenkosi Makebe0Hussein Shimelis1Admire I. T. Shayanowako2University of KwaZulu-NatalUniversity of KwaZulu-NatalUniversity of KwaZulu-NatalGenetic diversity is key for breeding population development, hybrid breeding, heterotic grouping and genetic analysis, among others. The objective of this study was to examine genetic interrelationships among elite sorghum genotypes bred for resistance to Striga hermonthica Del. Benth and S. asiatica (L.) Kuntze and compatible with a biological control agent Fusarium oxysporum f. sp. strigae (FOS) against Striga using 22 polymorphic simple sequence repeat (SSR) or microsatellite markers. The number of alleles per locus detected by the markers varied from 2 to 7 with a mean value of 4.23. The polymorphic information content (PIC) of the SSR markers ranged from 0.15 to 0.84 with a mean of 0.57 showing moderate discriminatory power of the primers. The neighbour-joining clustering algorithm classified the genotypes into three main groups, revealing narrow to moderate variations existing among the test genotypes. Overall, the genetic diversity revealed by the study will be useful for designed crosses and pyramiding of broad-based resistance genes to control Striga for sustainable sorghum production.http://dx.doi.org/10.1080/09064710.2021.1957142genetic diversitymicrosatellitesstrigasorghum
spellingShingle Athenkosi Makebe
Hussein Shimelis
Admire I. T. Shayanowako
Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
genetic diversity
microsatellites
striga
sorghum
title Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
title_full Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
title_fullStr Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
title_full_unstemmed Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
title_short Genetic interrelationships of elite sorghum (Sorghum bicolor (L.) Moench) genotypes bred for Striga resistance and compatibility with Fusarium oxysporum f. sp. strigae (FOS) revealed by microsatellites
title_sort genetic interrelationships of elite sorghum sorghum bicolor l moench genotypes bred for striga resistance and compatibility with fusarium oxysporum f sp strigae fos revealed by microsatellites
topic genetic diversity
microsatellites
striga
sorghum
url http://dx.doi.org/10.1080/09064710.2021.1957142
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