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GrainGenes Reference Report: GNM-38-250

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Reference	GNM-38-250
Title	Use of RFLPs to determine the chromosome composition of tetraploid triticale (A/B)(A/B)RR
Journal	Genome
Year	1995
Volume	38
Pages	250-254
Author	Lelley T Kazman E Devos K Gale M
Abstract	Tetraploid triticale, (A/B)(A/B)RR (2n = 28), is a botanical novelty, an amphiploid composed of a diploid rye and a 14 chromosome wheat genome made up of chromosomes of the A and B genomes of tetraploid wheat Restriction fragment length polymorphism (RFLP) markers were used to elucidate the chromosome composition of the mixed wheat genome of 35 different tetraploid triticale lines Of 128 possible A/B chromosome pair combinations, only 6 were found among these lines, with a prevalence of the 1A, 2A, 3B, 4B, SB, 6B, and 7B karyotype In most triticale lines stable wheat genomes made up of only homologous A or B genome chromosome pairs were identified, however, in some lines homoeologous chromosome pairs were found In this paper we demonstrate that RFLPs can be used successfully as an alternative to C-banding for the identification of the chromosome composition of tetraploid triticale and discuss the possible selective advantage of specific chromosome composition
Keyword	[ Hide all but 1 of 11 ] chromosome chromosome-pairing genetic markers genome-analysis homoeologous-chromosome-pairing homologous-chromosome-pairing karyotype secale cereale tetraploidy triticale triticum aestivum

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