ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2016
Resynthesis of Brassica napus through hybridization between B. juncea and B. carinata.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Transgenerational genetic and epigenetic changes induced by gamma-ray in Fagopyrum species.BMC plant biology · 2025Article
- Insights into early generation synthetic amphidiploidFrontiers in plant science · 2025Article
- Cytological and transcriptomic analyses provide insights into the pollen fertility of synthetic allodiploid Brassica juncea hybrids.Plant cell reports · 2023Article
- Interploidy Introgression Shaped Adaptation during the Origin and Domestication History of Brassica napus.Molecular biology and evolution · 2023Article
- Introgression of Heterotic Genomic Segments fromPlants (Basel, Switzerland) · 2023Article
- Article
- Production and cytology of Brassica autoallohexaploids with two and four copies of two subgenomes.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Challenges and prospects for a potential allohexaploid Brassica crop.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Review
- Exploring the gene pool of Brassica napus by genomics-based approaches.Plant biotechnology journal · 2021Review
- Chromosome instabilities in resynthesized Brassica napus revealed by FISH.Journal of applied genetics · 2020Article
- Reconstituting the genome of a young allopolyploid crop, Brassica napus, with its related species.Plant biotechnology journal · 2019Article
- Genetic changes in a novel breeding population of Brassica napus synthesized from hundreds of crosses between B. rapa and B. carinata.Plant biotechnology journal · 2018Article
- Cytogenetic and Molecular Characterization of B-Genome Introgression Lines of Brassica napus L.G3 (Bethesda, Md.) · 2017Article
- Current Status and Challenges in Identifying Disease Resistance Genes inFrontiers in plant science · 2017Review
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
key messageFirst report for the resynthesis of Brassica napus by recombining A and C genome from B. juncea and B. carinata , respectively. Also documents B genome introgressions in resynthesized B. napus. Resynthesis of Brassica napus (AACC) was achieved by hybridizing Brassica juncea (AABB) with Brassica carinata (BBCC). This was facilitated by spontaneous chromosome doubling in the F1 hybrid (ABBC) to yield octaploid (AABBBBCC), elimination of extra B genome chromosomes in the resulting octaploid and in subsequent selfed generations, aided with directed selection for fertile plants having B. napus morphology. Twenty-five plants with varying degrees of resemblance to natural B. napus were identified from 17 A5 progenies and assayed for cytogenetic stability and genetic diversity. Majority of these plants, except six (2n = 38) were hyperploids (2n = 40-56). The six plants with 2n = 38 were designated as derived B. napus types. These showed an expected meiotic configuration of 19II at metaphase-I, with 19-19 distribution at anaphase-I. Genotyping based on A and C genome specific primers confirmed genetic identity of six derived (2n = 38) B. napus plants with natural types whereas genotyping with B genome specific primers indicated introgression of B genome segments. This was also confirmed by genomic in situ hybridization (GISH). Strong signals of B genome probe were detected, proving hitherto unreported genetic exchanges between B and A/C chromosomes. These introgressions possibly occurred en route five generations of selfing. Derived plants yielded fertile hybrids in crosses with natural B. napus var. GSC 6. The selfed derived plants as evaluated in A6 plant to progeny rows were morphologically similar to natural B. napus, and meiotically stable. Agronomic assessment of these progenies revealed variation for key morpho-physiological traits. Of special interest were the progenies with plants having oil content exceeding 47% as against about 39-41% in existing cultivars.
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