Wide Hybridization Between Oat and Pearl Millet.

Area of Science:

• Plant breeding and genetics
• Crop science
• Poaceae family research

Background:

• Wide hybridization is crucial for plant breeding, enabling gene transfer between species.
• Oat (Avena sativa L.) and pearl millet (Pennisetum glaucum L.) are distantly related within the Poaceae family.
• Typically, distant crosses result in chromosome elimination, hindering hybrid development.

Purpose of the Study:

• To describe a detailed protocol for wide hybridization between oat and pearl millet.
• To investigate chromosome behavior in distant interspecific hybrids.
• To address challenges in developing viable intergeneric hybrids.

Main Methods:

• Successful wide hybridization technique employed.
• Embryogenesis and chromosome behavior analysis.
• Development and observation of hybrid seedlings.

Main Results:

• All seven pearl millet chromosomes were retained in the oat background during embryogenesis.
• Hybrid seedlings developed from the cross.
• Observed necrosis in hybrid seedlings upon light irradiation.

Conclusions:

• Successful wide hybridization between oat and pearl millet is achievable, retaining the full pearl millet genome.
• The developed hybrid seedlings exhibit photosensitivity, a significant barrier to their viability.
• A detailed protocol is provided to facilitate further research and application of this wide hybridization technique.