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Article

Generational variation and stabilization in resynthesized allotetraploid Brassica juncea derived from diploid progenitors B. rapa and B. nigra.

BMC plant biology - 29 Jun 2026

Tripathi Shikha, Garg Pooja, Gupta Sneha, Kushwaha Ranjeet, Sharma Jyoti, Sharma Shiv Shankar, Kumari Sujata, Kashyap Anamika, Singh Naveen, Yadav Rashmi, Bhattacharya Ramcharan, Kumar Akhilesh, Rao Mahesh

Abstract excerpt

BACKGROUND: Polyploidy is a major driver of plant evolution and crop improvement, generating novel variation in morphology, physiology, and agronomic traits. Brassica juncea (AABB, 2n = 36), a natural allotetraploid derived from B. rapa (AA) and B. nigra (BB), is an important oilseed and vegetable crop; however, its narrow genetic base limits further breeding gains. Resynthesized B. juncea (RBJ), developed from...

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Topics

Mustard Plant
Genetic Variation
Diploidy
Brassica rapa
Tetraploidy

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Polyploidy

Plant Breeding

Phenotype

Seeds

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Identifiers

PMID: 42374182
DOI: 10.1186/s12870-026-09240-z
PMCID: PMC13576283

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