Asian Journal of Bio Science

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Sterility Genes in Interspecific Hybrids of Oryza glaberrima and Oryza sativa


Affiliations
1 Department of Genetics, Punjab Agricultural University, Ludhiana (Punjab), India
     

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The African rice O. glaberrima is first choice of useful gene mining in AA genome species because of its resistance to biotic and abiotic stress. The introduction of these characters to O. sativa is difficult due to reproductive barriers leading to spikelet sterility. However, fertility can be restored by backcrossing which has resulted in improvement of rice due to transfer of many agronomical traits.

Keywords

Gene Sterility, Interspecific Crosses, Reproductive Isolation, Barriers.
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  • Sterility Genes in Interspecific Hybrids of Oryza glaberrima and Oryza sativa

Abstract Views: 177  |  PDF Views: 0

Authors

Ritu Mahajan
Department of Genetics, Punjab Agricultural University, Ludhiana (Punjab), India

Abstract


The African rice O. glaberrima is first choice of useful gene mining in AA genome species because of its resistance to biotic and abiotic stress. The introduction of these characters to O. sativa is difficult due to reproductive barriers leading to spikelet sterility. However, fertility can be restored by backcrossing which has resulted in improvement of rice due to transfer of many agronomical traits.

Keywords


Gene Sterility, Interspecific Crosses, Reproductive Isolation, Barriers.