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Unveiling the unquestionable dominance of multilocularity in Brassica rapa var. yellow sarson: pioneering advancements in Brassica crop enhancement
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Unveiling the unquestionable dominance of multilocularity in Brassica rapa var. yellow sarson: pioneering advancements in Brassica crop enhancement
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Journal Article
Unveiling the unquestionable dominance of multilocularity in Brassica rapa var. yellow sarson: pioneering advancements in Brassica crop enhancement
2024
Overview
Yellow sarson (
Brassica rapa var. yellow sarson)
is an essential oilseed crop where the multilocular ovary trait enhances yield potential. Elucidating the inheritance pattern of multilocularity will empower breeding efforts. This study aimed to dissect the genetics governing ovary locule number in yellow sarson using crosses between multilocular (Pant Pili Sarson 1, NDYS) and bilocular (Pant Girija, B9) lines. F
1
, F
2
and backcross generations were developed and analyzed for segregation of locule number. Results revealed monogenic dominant inheritance of the multilocular trait. All F
1
progeny exhibited multilocularity, indicating dominance. The F
2
population displayed Mendelian 3:1 segregation of multilocular to bilocular phenotypes, confirming control by a single dominant locus. Backcrosses to multilocular parents produced all multilocular offspring, while crosses to bilocular parents exhibited 1:1 segregation, validating the model. These findings contrast with previous reports of recessive inheritance in Brassicaceae, likely reflecting differing genetic backgrounds. Nonetheless, the single dominant gene uncovered simplifies breeding efforts to enhance this beneficial high-yielding trait. By elucidating the genetics underlying multilocularity in yellow sarson, this work empowers breeding programs seeking to improve yield through enhancement of the multilocular ovary trait.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
