ArticleAnnals of botany2009
Chromosome elimination, addition and introgression in intertribal partial hybrids between Brassica rapa and Isatis indigotica.
Article in Annals of botany, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 46 citations in OpenAlex.
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- Evolutionary genomics of miniature inverted-repeat transposable elements (MITEs) in Brassica.Molecular genetics and genomics : MGG · 2015Article
- A comparative analysis of insertional effects in genetically engineered plants: considerations for pre-market assessments.Transgenic research · 2015Review
- Development and Characterization of Somatic Hybrids of Ulva reticulata Forsskål (×) Monostroma oxyspermum (Kutz.)Doty.Frontiers in plant science · 2015Article
- Genetic diversity in populations of Isatis glauca Aucher ex Boiss. ssp. from Central Anatolia in Turkey, as revealed by AFLP analysis.Botanical studies · 2013Article
- Alterations and abnormal mitosis of wheat chromosomes induced by wheat-rye monosomic addition lines.PloS one · 2013Article
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- Maximum likelihood inference implies a high, not a low, ancestral haploid chromosome number in Araceae, with a critique of the bias introduced by 'x'.Annals of botany · 2012Article
- Unequal chromosome division and inter-genomic translocation occurred in somatic cells of wheat-rye allopolyploid.Journal of plant research · 2012Article
- Genomic constitution of Festuca × Lolium hybrids revealed by the DArTFest array.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
- Analysis of the extracts of Isatis tinctoria by new analytical approaches of HPLC, MS and NMR.African journal of traditional, complementary, and alternative medicines : AJTCAM · 2011Article
- Production and cytogenetic characterization of intertribal somatic hybrids between Brassica napus and Isatis indigotica and backcross progenies.Plant cell reports · 2009Article
- Different genome-specific chromosome stabilities in synthetic Brassica allohexaploids revealed by wide crosses with Orychophragmus.Annals of botany · 2009Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsPartial hybrids with female-parent-type phenotypes and chromosome numbers but altered genomic compositions have been reported in wide crosses of several plants. In order to introgress desirable genes from a wild relative, Isatis indigotica (a dye and medicinal plant; 2n = 14), into Brassica crops, intertribal sexual hybridizations were carried out with B. rapa (2n = 20), and the resulting hybrids and their progenies were characterized.
methodsUsing genomic in situ hybridization (GISH) and amplified fragment length polymorphism (AFLP), chromosomal/genomic components of the hybrids and their progenies were analysed. KEY
resultsMany hybrid plants were obtained from the mature seeds harvested from the B. rapa x I. indigotica cross, and these exhibited different morphological traits. However, the majority of them did not survive and only three plants grew to maturity. These three hybrids showed poor growth and much smaller stature than the two parents, but had some morphological traits and chemical composition of I. indigotica. One plant had 2n = 10, the haploid chromosome number of B. rapa, and was absolutely sterile. The other two plants had 20 and 22 somatic chromosomes and were male sterile but produced seeds following pollinations with B. rapa. All back-cross progenies over several generations maintained a B. rapa-type phenotype and also displayed some variations in morphological characters and fatty acid compositions. They were all 2n = 20 and showed good seed-set. The hybrid with 2n = 22 produced some progeny plants with 2n = 21 and 2n = 22. GISH detected two chromosomes of I. indigotica in the hybrid with 2n = 22 but none in the one with 2n = 20. AFLP bands specific for I. indigotica, novel for two parents or absent in B. rapa, were detected in the two hybrids and their progenies. These progeny plants were novel B. rapa types with an altered genomic constitution or alien additions.
conclusionsComplete or partial chromosome elimination and diploidization with genomic rearrangements were considered to lead to the formation of partial hybrids in this cross.
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