Association mapping of sugarcane resistance to the sugarcane yellow leaf disease
The Sugarcane Yellow Leaf disease is a major viral disease of sugarcane, caused by a Polerovirus - the SCYLV- transmitted by several aphid species. The disease was described only in the 1990s probably because yellowing of the leaves, the main symptom, may be confused with abiotic stress. Yellow leaf disease is widely distributed in sugarcane growing areas where yield losses have been reported. Varietal resistance, both against the virus and its vectors, is the most practicable control method and a recent objective in breeding programs. In order to analyze the genetic basis of the resistance to SCYLV and to its worldwide aphid vector Melanaphis sacchari, we undertook an association mapping study based on 344 sugarcane cultivars. These 344 cultivars were split in two populations sharing 29 common cultivars, and evaluated in two contrasted environments, one in Réunion Island in the Indian Ocean (RUN, 184 cultivars) and one in Guadeloupe in the Caribbean (GUA, 189 cultivars). The RUN (one trial) and the GUA (two trials) populations were evaluated in the field in second ratoon under natural infestation conditions for SCYLV incidence by tissue-blot immunoassay. BRA-PER, CUB and RUN genotypes of the SCYLV were recorded by PCR in the GUA population. SCYLV genotypes detected in the RUN population were BRA-PER and RUN the latter representing the majority of the samples. The Réunion population was also evaluated for M. sacchari infestation level during two cropping seasons. Both populations were genotyped with AFLP markers (1367 markers for RUN and 2421 markers for GUA) and DArT markers (1877 markers for RUN and 1560 markers for GUA). Genetic structure of both populations was analyzed by a Principal Component Analysis (PCA) approach with the EIGENSOFT software, using 2092 independent markers for RUN and 2576 independent markers for GUA. Significant marker - trait associations were detected with the TASSEL software, using a mixed linear model taking into account structure and family relatedness. Analysis of marker-trait associations for resistance to SCYLV revealed 16 significant markers in Réunion, defining 11 independent loci. In Guadeloupe, 20 significant associations were detected. Among the markers that were significant either in Réunion or in Guadeloupe, 18 (13 independent loci) were coded in both populations. Among these 13 commonly coded loci, five were confirmed, i.e. detected in one population, with control of GWtype 1 error by permutation procedure, and significant at the 0.05 nominal P value in the second population. Analysis of marker-trait associations for resistance to aphids detected 24 significant markers, defining 19 independent loci. One of these markers was located on a haplotype where a confirmed linkage associated with reduction of SCYLV incidence both in Réunion and in Guadeloupe was identified.
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F30 - Génétique et amélioration des plantes H20 - Maladies des plantes F30 - Génétique et amélioration des plantes H20 - Maladies des plantes Fartek, Benjamin Rocher, Solen Débibakas, Sarah Hervouet, Catherine Royeart, S. Toubi, Lyonel Roques, Danièle Daugrois, Jean-Heinrich D'Hont, Angélique Hoarau, Jean-Yves Nibouche, Samuel Costet, Laurent Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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The Sugarcane Yellow Leaf disease is a major viral disease of sugarcane, caused by a Polerovirus - the SCYLV- transmitted by several aphid species. The disease was described only in the 1990s probably because yellowing of the leaves, the main symptom, may be confused with abiotic stress. Yellow leaf disease is widely distributed in sugarcane growing areas where yield losses have been reported. Varietal resistance, both against the virus and its vectors, is the most practicable control method and a recent objective in breeding programs. In order to analyze the genetic basis of the resistance to SCYLV and to its worldwide aphid vector Melanaphis sacchari, we undertook an association mapping study based on 344 sugarcane cultivars. These 344 cultivars were split in two populations sharing 29 common cultivars, and evaluated in two contrasted environments, one in Réunion Island in the Indian Ocean (RUN, 184 cultivars) and one in Guadeloupe in the Caribbean (GUA, 189 cultivars). The RUN (one trial) and the GUA (two trials) populations were evaluated in the field in second ratoon under natural infestation conditions for SCYLV incidence by tissue-blot immunoassay. BRA-PER, CUB and RUN genotypes of the SCYLV were recorded by PCR in the GUA population. SCYLV genotypes detected in the RUN population were BRA-PER and RUN the latter representing the majority of the samples. The Réunion population was also evaluated for M. sacchari infestation level during two cropping seasons. Both populations were genotyped with AFLP markers (1367 markers for RUN and 2421 markers for GUA) and DArT markers (1877 markers for RUN and 1560 markers for GUA). Genetic structure of both populations was analyzed by a Principal Component Analysis (PCA) approach with the EIGENSOFT software, using 2092 independent markers for RUN and 2576 independent markers for GUA. Significant marker - trait associations were detected with the TASSEL software, using a mixed linear model taking into account structure and family relatedness. Analysis of marker-trait associations for resistance to SCYLV revealed 16 significant markers in Réunion, defining 11 independent loci. In Guadeloupe, 20 significant associations were detected. Among the markers that were significant either in Réunion or in Guadeloupe, 18 (13 independent loci) were coded in both populations. Among these 13 commonly coded loci, five were confirmed, i.e. detected in one population, with control of GWtype 1 error by permutation procedure, and significant at the 0.05 nominal P value in the second population. Analysis of marker-trait associations for resistance to aphids detected 24 significant markers, defining 19 independent loci. One of these markers was located on a haplotype where a confirmed linkage associated with reduction of SCYLV incidence both in Réunion and in Guadeloupe was identified. |
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F30 - Génétique et amélioration des plantes H20 - Maladies des plantes |
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Fartek, Benjamin Rocher, Solen Débibakas, Sarah Hervouet, Catherine Royeart, S. Toubi, Lyonel Roques, Danièle Daugrois, Jean-Heinrich D'Hont, Angélique Hoarau, Jean-Yves Nibouche, Samuel Costet, Laurent |
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Fartek, Benjamin Rocher, Solen Débibakas, Sarah Hervouet, Catherine Royeart, S. Toubi, Lyonel Roques, Danièle Daugrois, Jean-Heinrich D'Hont, Angélique Hoarau, Jean-Yves Nibouche, Samuel Costet, Laurent |
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Fartek, Benjamin |
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Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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Association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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association mapping of sugarcane resistance to the sugarcane yellow leaf disease |
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http://agritrop.cirad.fr/567059/ http://agritrop.cirad.fr/567059/1/document_567059.pdf |
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AT fartekbenjamin associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT rochersolen associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT debibakassarah associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT hervouetcatherine associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT royearts associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT toubilyonel associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT roquesdaniele associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT daugroisjeanheinrich associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT dhontangelique associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT hoaraujeanyves associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT nibouchesamuel associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease AT costetlaurent associationmappingofsugarcaneresistancetothesugarcaneyellowleafdisease |
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dig-cirad-fr-5670592022-03-30T14:46:42Z http://agritrop.cirad.fr/567059/ http://agritrop.cirad.fr/567059/ Association mapping of sugarcane resistance to the sugarcane yellow leaf disease. Fartek Benjamin, Rocher Solen, Débibakas Sarah, Hervouet Catherine, Royeart S., Toubi Lyonel, Roques Danièle, Daugrois Jean-Heinrich, D'Hont Angélique, Hoarau Jean-Yves, Nibouche Samuel, Costet Laurent. 2011. In : 10th Germplasm and Breeding, and 7th Molecular Biology Workshop, Maceió, Brazil, 15-20 May 2011 : Breaking breeding and biotechnology paradigms - towards a complementary approach in sugar cane research. Abstract. ISSCT, STAB. Réduit : ISSCT, Résumé, 58. ISSCT Molecular Biology Workshop. 7, Maceio, Brésil, 15 Mai 2011/20 Mai 2011.http://www.comuniceventos.com.br/_HOTSITES/germplasm/_ARQUIVOS/ABSTRACT.pdf <http://www.comuniceventos.com.br/_HOTSITES/germplasm/_ARQUIVOS/ABSTRACT.pdf> Researchers Association mapping of sugarcane resistance to the sugarcane yellow leaf disease Fartek, Benjamin Rocher, Solen Débibakas, Sarah Hervouet, Catherine Royeart, S. Toubi, Lyonel Roques, Danièle Daugrois, Jean-Heinrich D'Hont, Angélique Hoarau, Jean-Yves Nibouche, Samuel Costet, Laurent eng 2011 ISSCT 10th Germplasm and Breeding, and 7th Molecular Biology Workshop, Maceió, Brazil, 15-20 May 2011 : Breaking breeding and biotechnology paradigms - towards a complementary approach in sugar cane research. Abstract F30 - Génétique et amélioration des plantes H20 - Maladies des plantes The Sugarcane Yellow Leaf disease is a major viral disease of sugarcane, caused by a Polerovirus - the SCYLV- transmitted by several aphid species. The disease was described only in the 1990s probably because yellowing of the leaves, the main symptom, may be confused with abiotic stress. Yellow leaf disease is widely distributed in sugarcane growing areas where yield losses have been reported. Varietal resistance, both against the virus and its vectors, is the most practicable control method and a recent objective in breeding programs. In order to analyze the genetic basis of the resistance to SCYLV and to its worldwide aphid vector Melanaphis sacchari, we undertook an association mapping study based on 344 sugarcane cultivars. These 344 cultivars were split in two populations sharing 29 common cultivars, and evaluated in two contrasted environments, one in Réunion Island in the Indian Ocean (RUN, 184 cultivars) and one in Guadeloupe in the Caribbean (GUA, 189 cultivars). The RUN (one trial) and the GUA (two trials) populations were evaluated in the field in second ratoon under natural infestation conditions for SCYLV incidence by tissue-blot immunoassay. BRA-PER, CUB and RUN genotypes of the SCYLV were recorded by PCR in the GUA population. SCYLV genotypes detected in the RUN population were BRA-PER and RUN the latter representing the majority of the samples. The Réunion population was also evaluated for M. sacchari infestation level during two cropping seasons. Both populations were genotyped with AFLP markers (1367 markers for RUN and 2421 markers for GUA) and DArT markers (1877 markers for RUN and 1560 markers for GUA). Genetic structure of both populations was analyzed by a Principal Component Analysis (PCA) approach with the EIGENSOFT software, using 2092 independent markers for RUN and 2576 independent markers for GUA. Significant marker - trait associations were detected with the TASSEL software, using a mixed linear model taking into account structure and family relatedness. Analysis of marker-trait associations for resistance to SCYLV revealed 16 significant markers in Réunion, defining 11 independent loci. In Guadeloupe, 20 significant associations were detected. Among the markers that were significant either in Réunion or in Guadeloupe, 18 (13 independent loci) were coded in both populations. Among these 13 commonly coded loci, five were confirmed, i.e. detected in one population, with control of GWtype 1 error by permutation procedure, and significant at the 0.05 nominal P value in the second population. Analysis of marker-trait associations for resistance to aphids detected 24 significant markers, defining 19 independent loci. One of these markers was located on a haplotype where a confirmed linkage associated with reduction of SCYLV incidence both in Réunion and in Guadeloupe was identified. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/567059/1/document_567059.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html http://www.comuniceventos.com.br/_HOTSITES/germplasm/_ARQUIVOS/ABSTRACT.pdf http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=216026 info:eu-repo/semantics/altIdentifier/purl/http://www.comuniceventos.com.br/_HOTSITES/germplasm/_ARQUIVOS/ABSTRACT.pdf |