Marker-Assisted Backcross Breeding for Improvement of Submergence Tolerance and Grain Yield in the Popular Rice Variety ‘Maudamani’
نویسندگان
چکیده
Submergence stress due to flash floods reduces rice yield drastically in sensitive varieties. Maudamani is a high yielding popular variety but highly susceptible submergence stress. The selection of progenies carrying Sub1 and GW5 (wide-grain) enhanced the tolerance grain theMaudamani by following marker-assisted backcross breeding method. Foreground screening detected 14 BC1F1, 17 BC2F1, 12 BC3F1 that carried target QTLs for width. Background was performed QTL recovery recipient parent’s genome upto 96.875% BC3 pyramided line. plant containing highest parent content self-pollinated. In BC3F2 generation, alleles component OsSPL14 were tracked homozygous states progenies. Seven lines showed days higher than both parents. similar majority studied morphological quality traits. are useful as cultivars can serve potential donors transfer Sub1, OsSPL14, Gn1a, (wide-grain), SCM2 QTLs.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2021
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy11071263