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The new use of Sorghum bicolor-derived SSR markers to evaluate genetic diversity in 17 Australian Sorghum species

Dillon, S.L., Lawrence, P.K. and Henry, R.J. (2005) The new use of Sorghum bicolor-derived SSR markers to evaluate genetic diversity in 17 Australian Sorghum species. Plant Genetic Resources: Characterisation and Utilisation, 3 (1). pp. 19-28.

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Article Link(s): http://dx.doi.org/10.1079/PGR200454

Abstract

The Sorghum genus is extremely diverse both morphologically and geographically, however, relatively few of the 25 recognized species have been evaluated genetically. The apparent lack of basic knowledge pertaining to the levels of genetic diversity both within and between the 17 Australian wild species is a major obstacle to both their effective conservation and potential use in breeding programmes. Twelve Sorghum bicolor-derived simple sequence repeat (SSR) markers were evaluated for cross-species amplification in all 25 Sorghum species. The SSR markers were highly polymorphic, with diversity indices ranging from 0.59 to 0.99 with mean of 0.91. Five markers combined were able to differentiate 24 of the 25 Sorghum species, with intra-species polymorphism apparent. Sorghum bicolor-derived SSRs have proven to be an efficient source of markers for genetic diversity studies of the relatively poorly characterized Australian indigenous Sorghum species. © The State of Queensland (Department of Primary Industries & Fisheries) 2005.

Item Type:Article
Additional Information:© The State of Queensland (Department of Primary Industries & Fisheries) 2005.
Keywords:Cross-species amplification Germplasm conservation Microsatellites Sorghum breeding Joint institution paper.
Subjects:Science > Botany > Genetics
Plant culture > Seeds. Seed technology
Plant culture > Field crops > Sorghum
Deposited On:01 Jul 2019 05:05
Last Modified:01 Jul 2019 05:05

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