Comparison of seven homoeologous haplotypes (BAC) within the high polyploid sugarcane genome : [Abstract W604]

Charron Carine, Garsmeur Olivier, Jouffe Vincent, Bocs Stéphanie, Samain Sylvie, Couloux Arnaud, Droc Gaëtan, Glaszmann Jean-Christophe, Van Sluys Marie-Anne, D'Hont Angélique. 2010. Comparison of seven homoeologous haplotypes (BAC) within the high polyploid sugarcane genome : [Abstract W604]. In : Abstracts of Plant and Animal Genomes XVIIIth Conference, San Diego, CA (USA), January 09-13, 2010. s.l. : s.n., Résumé Plant and Animal Genomes Conference. 18, San Diego, États-Unis, 9 Janvier 2010/13 Janvier 2010.

Résumé : Sugarcane cultivars (Saccharum spp.) present one the most complex crop genomes studied to date: highly polyploids (more than decaploids) and aneuploids, with around 120 chromosomes and a genome size of around 10 Gb. In order to investigate the organisation of this highly polyploid genome (% of homology between allele haplotypes, content in repeated sequence...), which is essential for elaborating a whole genome sequencing strategy, we sequenced and compared seven hom(oe)ologous haplotypes (BAC clones) from the sugarcane cultivar R570. These haplotypes showed a very high colinearity as well as very high gene structure and sequence conservation. A high homology was also observed along the non-transcribed regions to the exception of transposable elements (TEs) which represents between 18 and 53% of the BAC sequence. A high colinearity was also observed in the overlapping regions between sugarcane and sorghum and to a lower extent with rice. (Texte intégral)

Classification Agris : F30 - Génétique et amélioration des plantes

Auteurs et affiliations

• Charron Carine, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0003-0281-9936
• Garsmeur Olivier, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0001-8869-3689
• Jouffe Vincent
• Bocs Stéphanie ORCID: 0000-0001-7850-4426
• Samain Sylvie, Centre national de séquençage (FRA)
• Couloux Arnaud, Centre national de séquençage (FRA)
• Droc Gaëtan, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0003-1849-1269
• Glaszmann Jean-Christophe, CIRAD-BIOS-DIR (FRA) ORCID: 0000-0001-9918-875X
• Van Sluys Marie-Anne, USP (BRA)
• D'Hont Angélique, CIRAD-BIOS-UMR DAP (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/555740/)

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