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ARS Home » Plains Area » College Station, Texas » Southern Plains Agricultural Research Center » Crop Germplasm Research » Research » Publications at this Location » Publication #324138

Research Project: CHARACTERIZATION AND IDENTIFICATION OF RESISTANCE IN SORGHUM TO FUNGAL PATHOGENS

Location: Crop Germplasm Research

Title: Genetic diversity of sweet sorghum germplasm in Mexico using AFLP and SSR markers

Author
item Pecina-quintero, Victor - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Anaya-lopez, Jose Luis - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Zamarripa-colmenero, Alfredo - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Montes-garcia, Noe - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Nunez-colin, Carlos - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Solis-bonilla, Jose Luis - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Aguila-rangel, Maria Rocio - Instituto Nacional De Investigaciones Forestales Y Agropecuarias (INIFAP)
item Prom, Louis

Submitted to: Pesquisa Agropecuaria Brasileira
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/4/2012
Publication Date: 8/1/2012
Citation: Pecina-Quintero, V., Anaya-Lopez, J., Zamarripa-Colmenero, A., Montes-Garcia, N., Nunez-Colin, C., Solis-Bonilla, J., Aguila-Rangel, M., Prom, L.K. 2012. Genetic diversity of sweet sorghum germplasm in Mexico using AFLP and SSR markers. Pesquisa Agropecuaria Brasileira. 47:1095-1102.

Interpretive Summary: To reduce the dependence on fossil fuel, there is a need to search for other alternative sources of energy. The use of sorghum with juicy stem (sweet sorghum) has been shown to be a potential source for biofuel. Therefore, a study was conducted using molecular marker tools to determine the diversity and genetic relationships between different sweet sorghum lines and cultivars obtained from the National Institute for Forestry, Agriculture and Livestock Research, Mexico. The work showed genetic relationships for at least two types of sweet sorghum: A group of recently developed lines used for sugar and biofuel production, and another group consisting of older and recent lines used for the production of syrups. These sweet sorghum lines could be used to develop new varieties with higher sugar and juice contents.

Technical Abstract: The objective of this work was to evaluate the diversity and genetic relationships between lines and varieties of the sweet sorghum (Sorghum bicolor) germplasm bank of the National Institute for Forestry, Agriculture and Livestock Research, Mexico, using AFLP and SSR markers. The molecular markers revealed robust amplification profiles and were able to differentiate the 41 genotypes of sweet sorghum evaluated. Analysis of the frequency and distribution of polymorphic fragments allowed for the detection of unique (AFLP) and rare (SSR) alleles in several genotypes (RBSS-8, RBSS-9, RBSS-25, RBSS-32, and RBSS-37), indicating that these markers may be associated with a feature that has not yet been determined or may be useful for the identification of these genotypes. The genetic relationships indicated the presence of at least two types of sweet sorghum: a group of modern genotypes used for sugar and biofuel production, and another group consisting of historic and modern genotypes used for the production of syrups. Sweet sorghum genotypes may be used to develop new varieties with higher sugar and juice contents.