1Genetics Laboratory, Department of Botany, Bharathiar University, Coimbatore-641 046, Tamilnadu
PG and Research Department of Botany, Government Arts College, Ooty, The Nilgiris-643 002, Tamilnadu
*Corresponding author's e-mail: sharanyaasenthil121@gmail.com
Online published on 1 December, 2017.
The individual characteristic features of chromosomes in Petkus rye (diploid) and 82 hexaploid triticale accessions were assessed to identify the replaced rye chromosome pair(s) in triticale and its effect on kernel characters. GiemsaC-banding technique was used for the study. Results revealed that 24 hexaploid triticales showed full complement of rye chromosome, 34 had replacement of one pair and 24 had replacement of two pairs of rye chromosomes. Triticale strains with 2R/2D and 4R/4D substitutions had higher and medium seed set, respectively. Seed set was considerably high when both with 2R/2D and 4R/4D substitution occured together.
Triticale, Giemsa C-banding, chromosome substitution, rye
