Investigadores en Córdoba registran variedades de almorta que fundamentarán una nueva DOP en Ciudad Real.

Las dos primeras variedades de almorta (Lathyrus sativus), Almora y Chicharita, registradas por investigadores del Instituto de Agricultura Sostenible d

    ◼Ambas variedades, que reciben los nombres de Almerana y Chicharita, han sido licenciadas a la empresa Agrícola Peñarroya, una de las principales impulsoras de la Denominación de Or...

Investigadores del IAS-CSIC trabajan para crear una DOP en La Solana, en la provincia de Ciudad Real

El Instituto de Agricultura Sostenible (IAS-CSIC) y el Instituto de Estudios Sociales Avanzados (IESA-CSIC) de Córdoba han celebrado este jueves el

Las variedades  de Almora y Chicharita, han sido licenciadas a la empresa Agrícola Peñarroya

Las dos primeras variedades de almorta (Lathyrus sativus), Almerana y Titana, registradas por...

Evalúa a los científicos del mundo por el impacto de las citas de su producción académica

Key message GWAS using DArTseq markers identified novel resistance sources against parasitic broomrape in pea, elucidating candidate genes for marker-selected breeding as leverage for cultivar develop...

La importante presencia de investigadores del IAS-CSIC en este ranking pone de manifiesto la calidad de la investigación que se desarrolla en el mismo  

La importante presencia de investigadores del IAS-CSIC en este ranking pone de manifiesto la calidad de la investigación que se desarrolla en el mismo   El Instituto de Agricultura Sostenible […]

Key message GWAS using DArTseq markers identified novel resistance sources against parasitic broomrape in pea, elucidating candidate genes for marker-selected breeding as leverage for cultivar development and efficient disease control to enhance food security. Abstract Crenate broomrape (Orobanche crenata) is an important obligate root parasitic weed that causes severe yield losses in pea (Pisum sativum) production. O. crenata is difficult to eradicate in pea fields due to its high resilience and prolific seed boom capable of hibernating in soils for decades. Existing control strategies are not cost effective in low input legumes like pea. The most efficient ecofriendly mode of control is using resistant cultivars. Quantitative trait loci (QTL) studies based on bi-parental mapping has guided O. crenata resistance discovery, albeit their deployment in pea breeding is hindered by low marker resolution and large genetic distance. This study presents the first genome-wide association study (GWAS) on O. crenata resistance in pea, utilizing 324 diverse accessions and 26,045 diversity array technology sequence (DArTseq) markers. Phenotyping was performed over four seasons under field conditions using alpha lattice design. Results showed a strong phenotypic variation with an environmental influence on O. crenata infection. Novel resistance sources were identified mainly within the wild Pisum fulvum and P. sativum subsp. elatius. GWAS with two models yielded a total of 73 marker-trait associations with Chromosome 5 as major hotspot. Interestingly, some linked markers were detected in close proximity to four previous O. crenata resistance QTL. DArTseq markers identified 24 putative candidate genes participating in different cellular processes, including vesicle trafficking and transports, deoxyribonucleic acid transcription regulation, and defense including some leucine rich repeat receptor-like kinases. These results provide a valuable genetic resource for O. crenata resistance and a step toward its effective sustainable management—to enhance genetic diversity and cultivar improvement for food security.

Key message GWAS using DArTseq markers identified novel resistance sources against parasitic broomrape in pea, elucidating candidate genes for marker-selected breeding as leverage for cultivar development and efficient disease control to enhance food security. Abstract Crenate broomrape (Orobanche crenata) is an important obligate root parasitic weed that causes severe yield losses in pea (Pisum sativum) production. O. crenata is difficult to eradicate in pea fields due to its high resilience and prolific seed boom capable of hibernating in soils for decades. Existing control strategies are not cost effective in low input legumes like pea. The most efficient ecofriendly mode of control is using resistant cultivars. Quantitative trait loci (QTL) studies based on bi-parental mapping has guided O. crenata resistance discovery, albeit their deployment in pea breeding is hindered by low marker resolution and large genetic distance. This study presents the first genome-wide association study (GWAS) on O. crenata resistance in pea, utilizing 324 diverse accessions and 26,045 diversity array technology sequence (DArTseq) markers. Phenotyping was performed over four seasons under field conditions using alpha lattice design. Results showed a strong phenotypic variation with an environmental influence on O. crenata infection. Novel resistance sources were identified mainly within the wild Pisum fulvum and P. sativum subsp. elatius. GWAS with two models yielded a total of 73 marker-trait associations with Chromosome 5 as major hotspot. Interestingly, some linked markers were detected in close proximity to four previous O. crenata resistance QTL. DArTseq markers identified 24 putative candidate genes participating in different cellular processes, including vesicle trafficking and transports, deoxyribonucleic acid transcription regulation, and defense including some leucine rich repeat receptor-like kinases. These results provide a valuable genetic resource for O. crenata resistance and a step toward its effective sustainable management—to enhance genetic diversity and cultivar improvement for food security.

Un total de 11 equipos de 8 países de la Cuenca Mediterránea participan en el proyecto, que cuenta con una financiación de 4,5 millones de euros del programa europeo H2020 y en el que participa el cen...

Investigadores del Instituto de Agricultura Sostenible (IAS) del Consejo Superior de Investigaciones Científicas (CSIC) conforman uno de los once equipos que forman parte del proyecto 'Nustalgic (Negl...

CÓRDOBA, 17 (EUROPA PRESS) Investigadores del Instituto de Agricultura Sostenible (IAS) del Consejo Superior de Investigaciones Científicas (CSIC) conforman uno de los once equipos que forman parte de...

CÓRDOBA, 17 (EUROPA PRESS) Investigadores del Instituto de Agricultura Sostenible (IAS) del Consejo Superior de Investigaciones Científicas (CSIC) conforman uno de los once equipos que forman parte de...