title   
  

Evolution of Buchloë dactyloides based on cloning and sequencing of matK, rbcL, and cob genes from plastid and mitochondrial genomes

Budak, Hikmet and Shearman, Robert C. and Dweikat, İsmail (2005) Evolution of Buchloë dactyloides based on cloning and sequencing of matK, rbcL, and cob genes from plastid and mitochondrial genomes. Genome, 48 (3). pp. 411-416. ISSN 0831-2796

[img]PDF - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
97Kb

Official URL: http://dx.doi.org/10.1139/G05-002

Abstract

Buffalograss (Buchloe dactyloides (Nutt.) Englem), a C-4 turfgrass species, is native to the Great Plains region of North America. The evolutionary implications of buffalograss are unclear. Sequencing of rbcL and matK genes from plastid and the cob gene from mitochondrial genomes was examined to elucidate buffalograss evolution. This study is the first to report sequencing of these genes from organelle genomes in the genus Buchloe Comparisons of sequence data from the mitochondrial and plastid genome revealed that all genotypes contained the same cytoplasmic origin. There were some rearrangements detected in mitochondrial genome. The buffalograss genome appears to have evolved through the rearrangements of convergent subgenomic domains. Combined analyses of plastid genes suggest that the evolutionary process in Buchloe accessions studied was monophyletic rather than polyphyletic. However, since plastid and mitochondrial genomes are generally uniparentally inherited, the evolutionary history of these genomes may not reflect the evolutionary history of the organism, especially in a species in which out-crossing is common. The sequence information obtained from this study can be used as a genome-specific marker for investigation of the buffalograss polyploidy complex and testing of the mode of plastid and mitochondrial transmission in genus Buchloe.

Item Type:Article
Uncontrolled Keywords:buffalograss; evolution; organelle genomes; turfgrass
Subjects:Q Science > QH Natural history > QH301-705.5 Biology
ID Code:542
Deposited By:Hikmet Budak
Deposited On:26 Sep 2005 03:00
Last Modified:25 May 2011 14:07

Repository Staff Only: item control page