DISCRIMINATIVE ANALYSIS OF 10 SPECIES OF AEGILOPS L. (POACEAE) NATIVE TO IRAN

Document Type: Research Note

Authors

1 Department of Biology, Alzahra University, Vanak, Tehran, I. R. of Iran

2 Department of Biology, Isfahan University, Isfahan, I. R. of Iran

3 Department of Statistics, Isfahan University, Isfahan, I. R. of Iran

Abstract

The genus Aegilops is one of the wheat relatives which comprise the main part of its gene pool.
The identification of the Aegilops species is difficult due to their vast morphological similarities and gene
flow among different species of Aegilops and cultivated wheat. Some morphological characters are used to
distinguish different species in Aegilops. In this study, we evaluate all these characters and choose 9
quantitative morphological ones including culm number, reproductive culm number, the length of the longest
culm, spike length including and excluding awns, length of longest inter-node, length of lowermost glume,
and the length of the uppermost lemma and palea. These characters were measured for 64 populations of 10
species of Aegilops in Iran. Discriminative analysis was used to evaluate the correctness of classification.
Results indicate a great confusion between two varieties of Ae. triuncialis, and these taxa as a whole with
others. Discriminative analysis proved the diagnostic value of these 9 quantitative characters in Aegilops in
Iran.

Keywords