IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v11y2021i9p883-d635868.html
   My bibliography  Save this article

Introgression of QTLs for Drought Tolerance into Farmers’ Preferred Sorghum Varieties

Author

Listed:
  • Andekelile Mwamahonje

    (West Africa Centre for Crop Improvement (WACCI), College of Basic and Applied Sciences, University of Ghana, Accra 00233, Ghana
    Tanzania Agricultural Research Institute (TARI), Makutupora Centre, P.O. Box 1676, Dodoma 41026, Tanzania)

  • John Saviour Yaw Eleblu

    (West Africa Centre for Crop Improvement (WACCI), College of Basic and Applied Sciences, University of Ghana, Accra 00233, Ghana)

  • Kwadwo Ofori

    (West Africa Centre for Crop Improvement (WACCI), College of Basic and Applied Sciences, University of Ghana, Accra 00233, Ghana)

  • Tileye Feyissa

    (Institute of Biotechnology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia)

  • Santosh Deshpande

    (International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502324, India)

  • Ana Luísa Garcia-Oliveira

    (Excellence in Breeding (EiB) Platform, International Maize and Wheat Improvement Centre (CIMMYT), ICRAF, Nairobi 00621, Kenya)

  • Rajaguru Bohar

    (CGIAR Excellence in Breeding Platform (EiB), CIMMYT, ICRISAT Campus, Hyderabad 502324, India)

  • Milcah Kigoni

    (Department of Crop Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA)

  • Pangirayi Tongoona

    (West Africa Centre for Crop Improvement (WACCI), College of Basic and Applied Sciences, University of Ghana, Accra 00233, Ghana)

Abstract

Sorghum is a major staple food crop for the people in semi-arid areas of Africa and Asia. Post-flowering drought is a global constraint of sorghum production. The study aimed to improve stay-green (STG) characteristics of farmer-preferred sorghum varieties in Tanzania using marker-assisted backcrossing. A total of 752 individuals representing five BC 2 F 1 populations and their parents were genotyped using previously reported KASP markers linked with STG 3A and STG 3B quantitative trait loci (QTL). In the BC 2 F 1 populations, the maximum number of individuals with heterozygous alleles were observed in S35*Pato background (37) whereas only seven individuals derived from the B35*Wahi parents’ background contained heterozygous alleles. Of the 30 single nucleotide polymorphism (SNP) markers, favourable alleles were observed at 18 loci in BC 2 F 1 populations. In the BC 2 F 1 generation, the highest (0.127 kg/panicle) grain yield was observed in the B35*NACO Mtama 1 background population. The genotypic analysis revealed the presence of favourable alleles in homozygous conditions at markers loci associated with STG 3A and STG 3B QTLs in BC 2 F 3 populations, suggesting successful introgression of STG QTLs from the donor parents to the recurrent parents. Across water irrigation regimes, the highest (0.068 kg/panicle) mean grain weight was observed in the genotype NA316C. Therefore, our study demonstrated the utility of marker-assisted backcrossing for drought tolerance improvement of locally adapted sorghum varieties in Africa.

Suggested Citation

  • Andekelile Mwamahonje & John Saviour Yaw Eleblu & Kwadwo Ofori & Tileye Feyissa & Santosh Deshpande & Ana Luísa Garcia-Oliveira & Rajaguru Bohar & Milcah Kigoni & Pangirayi Tongoona, 2021. "Introgression of QTLs for Drought Tolerance into Farmers’ Preferred Sorghum Varieties," Agriculture, MDPI, vol. 11(9), pages 1-14, September.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:9:p:883-:d:635868
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/11/9/883/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/11/9/883/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Nasrein Mohamed Kamal & Yasir Serag Alnor Gorafi & Hanan Abdeltwab & Ishtiag Abdalla & Hisashi Tsujimoto & Abdelbagi Mukhtar Ali Ghanim, 2021. "A New Breeding Strategy towards Introgression and Characterization of Stay-Green QTL for Drought Tolerance in Sorghum," Agriculture, MDPI, vol. 11(7), pages 1-19, June.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jana Gerta Backes & Marzia Traverso, 2021. "Life Cycle Sustainability Assessment—A Survey Based Potential Future Development for Implementation and Interpretation," Sustainability, MDPI, vol. 13(24), pages 1-18, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:11:y:2021:i:9:p:883-:d:635868. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.