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April 18, 2026Scientific ReportsOpen Access

Combining ability and molecular marker approach for developing early maturing high yielding hybrid rice

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Authors

MSMd ShamsuddohaASAyesha SiddikaAKA. S. M. Mustafa Kamal

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Overview

Analyzes combining ability and molecular markers to enhance hybrid rice yield and early maturity, impacting food security.

Key Points

  • The aim is to develop early maturing and high yielding hybrid rice through combining ability analysis and molecular markers.
  • Crossed fourteen rice genotypes in a line × tester design to create breeding populations.
  • Evaluated general and specific combining ability effects along with heterosis for eight yield traits.
  • Assessed parental genetic distance using 25 simple sequence repeat markers and correlated it with hybrid performance.
  • Identified SH-3A, SH-4A, BUR, and SH-802R as excellent general combiners for hybrid rice.
  • Observed significant positive correlations between genetic distance and heterosis for flowering and maturity traits.
  • Noted that specific combining ability was a major factor influencing hybrid performance across evaluated traits.

Cite This Study

Shamsuddoha et al. (2026) studied this question.

synapsesocial.com/papers/69e320e740886becb6540097https://doi.org/10.1038/s41598-026-43220-5
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Also Consider

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  1. 1Combining ability and gene action for flowering, plant height, grain size, and yield in rice (Oryza sativa L.) genotypes2026
  2. 2Heterosis and Combining Ability Studies for Yield and Its Contributing Traits Using Wild-Abortive (WA) Cytoplasmic Male Sterile (CMS) Lines in Rice (Oryza sativa L.)2025
  3. 3Studies on Combining Ability and Heterosis for Yield, Yield Contributing Traits in Rice (Oryza sativa L.) Hybrids2025
  4. 4COMBINING ABILITY ANALYSIS FOR YIELD AND YIELD CONTRIBUTING TRAITS USING CYTOPLASMIC MALE STERILE LINES IN AROMATIC HYBRIDS OF RICE2024
  5. 5Studies on Combining Ability for Grain Yield and its Attributing Traits in Maize (Zea mays L.)2025