IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v11y2021i3p226-d513465.html
   My bibliography  Save this article

Combining Ability and Gene Action for Yield Characteristics in Novel Aromatic Cytoplasmic Male Sterile Hybrid Rice under Water-Stress Conditions

Author

Listed:
  • Hamdi F. El-Mowafi

    (Rice Department, Field Crops Research Institute, ARC, Sakha, Kafr El-Sheikh 33717, Egypt)

  • Muneera D. F. AlKahtani

    (Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 102275 Riyadh 11675, Saudi Arabia)

  • Rizk M. Abdallah

    (Rice Department, Field Crops Research Institute, ARC, Sakha, Kafr El-Sheikh 33717, Egypt)

  • Amr M. Reda

    (Rice Department, Field Crops Research Institute, ARC, Sakha, Kafr El-Sheikh 33717, Egypt)

  • Kotb A. Attia

    (Rice Department, Field Crops Research Institute, ARC, Sakha, Kafr El-Sheikh 33717, Egypt
    Center of Excellence in Biotechnology Research, King Saud University, P.O. Box 2455 Riyadh 11451, Saudi Arabia)

  • Mahmoud A. El-Hity

    (Agronomy Department, College of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33512, Egypt)

  • Hend E. El-Dabaawy

    (Rice Department, Field Crops Research Institute, ARC, Sakha, Kafr El-Sheikh 33717, Egypt)

  • Latifa Al Husnain

    (Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 102275 Riyadh 11675, Saudi Arabia)

  • Talal K. Al-Ateeq

    (Center of Excellence in Biotechnology Research, King Saud University, P.O. Box 2455 Riyadh 11451, Saudi Arabia)

  • Mohamed A. EL-Esawi

    (Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt)

Abstract

Hybrid rice parental lines with better combining abilities provide an efficient tool to increase rice production. In the current study, twenty hybrid combinations were generated from five aromatic cytoplasmic male sterile (CMS) lines and four restorer lines (three of them aromatic) using a line × tester mating design. The hybrids and their parental lines were evaluated under two water regimes: normal irrigation and water-stress. Ten yield-component traits were studied over a period of 2 years, and the significant differences between the parents and hybrids are reported in this investigation. Overall, all yield component traits were significantly affected by the water deficit and were governed by both additive and non-additive gene actions. More specifically, the grain yield (GY) was mainly controlled by non-additive gene action under both normal and water-stress conditions. The contribution of the additive variance (σ 2 A) was more prominent in the genetic components of traits as compared to the dominance variance (σ 2 D). The aromatic parental line CMS IR58025A and the restorer line PR2 were recorded as the best combiners for the GY and good combiners for many other characteristics under both growth conditions. The cross combinations Pusa12A/IR25571-31R and Pusa12A/Giza-Basmati-201 revealed significantly positive specific combining ability (SCA) effects for the GY under both normal and water-stress conditions. The inconsistent correlation between the general combining ability (GCA) and SCA manifested complex interactions among the positive and negative alleles of the genes controlling the yield traits. Generally, the findings of this investigation demonstrated the importance of the GCA and SCA for understanding the genetic components and gene actions of the yield characteristics in new aromatic hybrid rice parental lines. Therefore, we recommend considering these findings in the selection of elite parents for developing superior aromatic hybrid rice varieties under water-stress conditions.

Suggested Citation

  • Hamdi F. El-Mowafi & Muneera D. F. AlKahtani & Rizk M. Abdallah & Amr M. Reda & Kotb A. Attia & Mahmoud A. El-Hity & Hend E. El-Dabaawy & Latifa Al Husnain & Talal K. Al-Ateeq & Mohamed A. EL-Esawi, 2021. "Combining Ability and Gene Action for Yield Characteristics in Novel Aromatic Cytoplasmic Male Sterile Hybrid Rice under Water-Stress Conditions," Agriculture, MDPI, vol. 11(3), pages 1-14, March.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:3:p:226-:d:513465
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/11/3/226/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/11/3/226/
    Download Restriction: no
    ---><---

    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:3:p:226-:d:513465. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.