This investigation
aimed to evaluate five upland cotton (Gossypium hirsutum
L.) (Aleppo118, Aleppo33/1, Aleppo90, Raqqa5, and
Deir-Ezzor22) varieties based on physiological indices and
genetic variation using AFLP marker. These varieties were
evaluated under control and saline conditions (50, 100 & 200 mM
NaCl) for 56 days. Various physiological indices were detected in this
investigation. In this respect, Deir-Ezzor22 variety differed by
showing high salt tolerance relative to the other tested varieties.
Otherwise, PCR amplification with 7 AFLP PCs primer combinations
revealed that Deir-Ezzor22 variety characterized by
15 unique positive markers compared to the other tested varieties.
Based on physiological study and AFLP technique, it can be concluded
that genetic variation detected by AFLP marker supported the
physiological indices among the tested cotton varieties. These
varieties present considerable interest forngenetic studies and plant
improvement.
Key
words: AFLP marker, Cotton, Physiological parameters,
Salt stress
