Genetic Resources and Crop Evolution

, Volume 52, Issue 5, pp 619–628

Genetic Variation Among Portuguese Landraces of ‘Arrancada’ Wheat and Triticum petropavlovskyi by AFLP-based Assessment

Article

DOI: 10.1007/s10722-005-6843-8

Cite this article as:
Akond, A.S.M.G.M. & Watanabe, N. Genet Resour Crop Evol (2005) 52: 619. doi:10.1007/s10722-005-6843-8

Abstract

Portuguese wheat landraces, ‘Arrancada’ were collected from the Aveiro region, Portugal before the 1950s. We found in eight accessions of `Arrancada' hexaploid wheat with the long glume phenotype. We assessed the comparative genetic diversity among Portuguese `Arrancada' wheat and Triticum petropavlovskyi Udacz. et Migusch. using AFLP assays and discuss the origin of long glumed `Arrancada' wheat. With the four primer pairs a total of 4885 visible bands were scored corresponding to 99 AFLP markers as putative loci, of which 55 markers (54%) were polymorphic. UPGMA clustering and PCO grouping showed that long glumed ‘Arrancada’ wheat and T. petropavlovskyi were genetically diverse. Long glumed ‘Arrancada’ hexaploid wheat separated into two clusters (groups) in both the UPGMA dendrogram and in PCO analysis. Four long glumed accessions fell in the cluster of tetraploid wheat. A similar argument could be made for another four accessions which belong to the cluster of hexaploid wheat. The substantial level of genetic variation indicated that long glumed ‘Arrancada’ wheat and T. petropavlovskyi originated independently. It is most likely that the P-gene of long glumed ‘Arrancada’ hexaploid wheat was introduced from T. turgidum ssp. polonicum (L.) Thell. to T. aestivum via natural introgression or breeding. We suggest that the long glumed ‘Arrancada’ hexaploid wheat did not originate from T. aestivum through spontaneous mutation at the P locus

Keywords

AFLP ‘Arrancada’ Diversity Introgression Long glume P locus Triticum durum Triticum petropavlovskyi Triticum polonicum Triticum turanicum 

Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Graduate School of AgricultureGifu UniversityGifuJapan
  2. 2.Faculty of Applied Biological SciencesGifu UniversityGifuJapan