Indian Society of Genetics & Plant Breeding

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Rye chromosome composition and seed characters in hexaploid triticale (X Triticosecale WITTMACK)

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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. Giemsa-
C-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.

Keywords: Triticale, -Giemsa C-banding, chromosome substitution, rye

Info

Year: 2017
Volume: 77
Issue: 4
Article DOI: 10.5958/0975-6906.2017.00077.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

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V. R. K. Reddy info_circle

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