DNA content and chloroplast DNA polymorphisms among switchgrasses from remnant Midwestern prairies

62Citations
Citations of this article
22Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Panicum virgatum L. (switchgrass) is a perennial grass that is native to most of the USA. The principal use of switchgrass has been as a pasture and range grass for forage production during the warmer summer months. The objective of this research was to determine if DNA content and chloroplast DNA (cpDNA) polymorphisms existed among and within switchgrass accessions from Midwestern prairie sites. Twenty-eight switchgrass accessions from remnant prairie sites were surveyed in 1994 for the upland cytotype (U) or lowland (L) cytotype in the cpDNA by means of restriction endonuclease BamHI and sorghum cpDNA probe pLD 5. These accessions were also surveyed in 1994 for DNA content differences flow cytometry. One accession, IA 31, contained a mixture of cytotypes indicating that both cytotypes can occur at a single remnant prairie site. The other Midwestern remnant prairies that were represented in this study contained only the U cytotype. The flow cytometry results indicated that switchgrass populations found within the Midwestern sites can be a mixture of ploidy levels with either 3 (tetraploid) or 6 (octaploid) pg DNA per cell. These results indicated that germplasm from Midwestern prairies should be identified according to DNA content and cytotype before it is utilized in developmental programs by plant breeders.

Cite

CITATION STYLE

APA

Hultquist, S. J., Vogel, K. P., Lee, D. J., Arumuganathan, K., & Kaeppler, S. (1997). DNA content and chloroplast DNA polymorphisms among switchgrasses from remnant Midwestern prairies. Crop Science, 37(2), 595–598. https://doi.org/10.2135/cropsci1997.0011183X003700020047x

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free