Homeotic-like modification of stamens to petals is associated with aberrant mitochondrial gene expression in cytoplasmic male sterile Ogura Brassica juncea.

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dc.contributor.authorMeur, Gargien_US
dc.contributor.authorGaikwad, Ken_US
dc.contributor.authorBhat, S Ren_US
dc.contributor.authorPrakash, Sen_US
dc.contributor.authorKirti, P Ben_US
dc.date.accessioned2006-08-31en_US
dc.date.accessioned2009-06-02T07:16:50Z
dc.date.available2006-08-31en_US
dc.date.available2009-06-02T07:16:50Z
dc.date.issued2006-08-31en_US
dc.description.abstractWe have previously reported correction of severe leaf chlorosis in the cytoplasmic male sterile Ogura (also called Ogu) Brassica juncea line carrying Ogura cytoplasm by plastid substitution via protoplast fusion. Two cybrids obtained from the fusion experiment, Og1 and Og2, were green and carried the plastid genome of B. juncea cv. RLM198. While Og1 displayed normal flower morphology comparable to that of its euplasmic B. juncea counterpart except for sterile anthers, Og2 retained homeotic-like floral modification of stamens to petal-like structures and several other floral deformities observed in the chlorotic (Ogu) B. juncea cv. RLM198 (or OgRLM). With respect to the mitochondrial genome, Og1 showed 81% genetic similarity to the fertile cultivar RLM while Og2 showed 93% similarity to OgRLM. In spite of recombination and rearrangements in the mitochondrial genomes in the cybrids, expression patterns of 10 out of 11 mitochondrial genes were similar in all the three CMS lines; the only exception was atp6, whose expression was altered. While Og1 showed normal atp6 transcript similar to that in RLM, in Og2 and OgRLM weak expression of a longer transcript was detected. These results suggest that the homeotic-like changes in floral patterning leading to petaloid stamens in Og2 and OgRLM may be associated with aberrant mitochondrial gene expression.en_US
dc.description.affiliationDepartment of Plant Sciences, University of Hyderabad, Hyderabad 500 046, India.en_US
dc.identifier.citationMeur G, Gaikwad K, Bhat SR, Prakash S, Kirti PB. Homeotic-like modification of stamens to petals is associated with aberrant mitochondrial gene expression in cytoplasmic male sterile Ogura Brassica juncea. Journal of Genetics. 2006 Aug; 85(2): 133-9en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/114342
dc.language.isoengen_US
dc.source.urihttps://www.ias.ac.in/jgenet/index.htmlen_US
dc.subject.meshBlotting, Northernen_US
dc.subject.meshBrassica --anatomy & histologyen_US
dc.subject.meshCytoplasm --metabolismen_US
dc.subject.meshFlowers --anatomy & histologyen_US
dc.subject.meshGene Expression Regulation, Planten_US
dc.subject.meshGenes, Homeoboxen_US
dc.subject.meshGenes, Mitochondrialen_US
dc.subject.meshGenes, Planten_US
dc.subject.meshPlant Infertility --geneticsen_US
dc.subject.meshPlant Proteinsen_US
dc.subject.meshPolymorphism, Restriction Fragment Lengthen_US
dc.titleHomeotic-like modification of stamens to petals is associated with aberrant mitochondrial gene expression in cytoplasmic male sterile Ogura Brassica juncea.en_US
dc.typeJournal Articleen_US
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