GENETIC VARIABILITY OF WILD Jatropha curcas IN NORTHWEST MEXICO
Tropical and Subtropical Agroecosystems(2021)
Abstract
Antecedentes : Jatropha ( Jatropha curcas ) o pinon mexicano, es una fuente potencial para la produccion de biodiesel asi como su uso en la industria farmaceutica, agricola, cosmetica y alimenticia. La variabilidad genetica es de gran importancia para la seleccion a futuro de plantas Elite. Objetivo : Analizar la diversidad genetica de Jatropha curcas silvestre en el Noroeste de Mexico. Metodologia : Se colectaron hojas jovenes de J. curcas en tres diferentes ecotipos del Sinaloa (El Quelite, Estacion Dimas y La Campana) y se realizo el analisis ISSR empleando 5 primers. Resultados : El analisis ISSR de 27 plantas de J. curcas mostro una heterocigosidad esperada (He) y heterocigosidad observada (Ho) elevada entre La Campana (He 0.7524, Ho 0.644), Estacion Dimas (He 0.7092, Ho 0.5106) y El Quelite (He 0.7956, Ho 0.6660). Implicaciones : El analisis de la variabilidad genetica de Jatropha curcas silvestre de Sinaloa contribuye a ser las bases para posible seleccion de material genetico. Conclusiones : El analisis ISSR mostro que existe diversidad genetica en el germoplasma silvestre de las diferentes regiones de Sinaloa, esto es importante en la seleccion de plantas y el establecimiento de cultivos potenciales para la produccion de biodiesel, asi como la posibilidad de mejorar e identificar nuevas variedades. Background : Jatropha ( Jatropha curcas ) or physic nut is a potential source for the production of biodiesel as well as its use in the pharmaceutical, agricultural, cosmetic, and food industries. Genetic variability is of great importance for the future selection of elite plants. Objective : Analyze the genetic diversity of wild Jatropha curcas in Northwest Mexico. Methodology : Young leaves of J. curcas were collected in three different ecotypes in Northern Sinaloa (El Quelite, Estacion Dimas, and La Campana). Their diversity was analyzed with 5 primers ISSRs. Results: The ISSR analysis of 27 J. curcas accessions showed expected heterozygosity (He) and observed heterozygosity (Ho) elevated among in La Campana (He 0.7524, Ho 0.644), Estacion Dimas (He 0.7092, Ho 0.5106) and El Quelite (He 0.7956, Ho 0.6660). Implications : The analysis of the genetic variability of wild Jatropha curcas from Sinaloa contributes to being the basis for the possible selection of genetic material. Conclusions : The ISSR analysis showed that there is genetic diversity in the wild germplasm of the different regions of Sinaloa, this is important in the selection of plants and the establishment of potential crops for the production of biodiesel, as well as the possibility of improving and identifying new varieties.
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Key words
diversidad,variabilidad genética,jatropha
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