Production and First Assessment of Iranian Secondary Tritipyrum Genotypes by GISH and AFLP Markers

Iranian Journal of Biotechnology
Hossein Shahsavand HassaniAndreas Bӧrner

Abstract

Non-Iranian Primary Tritipyrum (2n=6x=42, AABBEbEb) set seed after Triticale (2n=6x=42, AABBRR) and Tritordeum (2n=6x=42, AABBHcHc) but, due to a few undesirable agronomic traits, it cannot fulfil the commercial expectations of farming. To remove these deficiencies, six hexaploid Tritipyrum lines were crossed with four Iranian bread wheat cultivars which led to the production of 107 (F1), 479 (F2), 768 (F3), and 1539 (F4) Iranian Secondary Tritipyrum Genotypes (ISTG) seeds. This study was carried out for selecting the plants potentially carry the 5Eb chromosome/s and are good candidates for salt tolerant by GISH and RFLP markers. The procedure involved extracting the total DNA content of 209 plants, including non-Iranian primary Tritipyrum lines, Iranian wheat cultivars, Chinese Spring addition, and substitution lines for 5Eb and Iranian secondary Tritipyrum genotypes (ISTG: F1, F2, F3, F4). Genomic in situ Hybridization (GISH) on mitotic spreads of fertile new Iranian secondary Tritipyrum genotypes (ISTG) was carried out to demonstrate the feasibility of single Eb chromosomes. There were three trials of 18 Fragment Length Polymorphism (AFLP) EcoRI/MseI primers to identify the presence of the 5Eb chromosome in 105 ISTG plants, ...Continue Reading

Methods Mentioned

BETA
PCR
electrophoresis

Software Mentioned

Mega base
GISH

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