Differential effects of cultivated and wild barley 5H chromosomes on heading characters in wheat-barley chromosome addition lines

Tomoko Kawahara, Shin Taketa, Koji Murai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Wheat (Triticum aestivum L.)-barley (Hordeum vulgae L.) chromosome addition lines are possible vehicles for transferring barley genes into wheat. The barley 5H chromosomes has genetic effects on the heading characters in wheat-barley addition lines: accelerating narrow-sense earliness, decreasing vernalization requirement and/or increasing photoperiodic sensitivity. To elucidate the effects of different 5H chromosomes under an identical wheat genetic background, two wheat-barley addition lines, i.e. cultivated barley 'New Golden' 5H chromosome added to 'Shinchunaga' wheat (Shi-NG5H) and wild barely H. vulgare ssp. spontaneum 5H chromosome added to 'Shinchunaga' wheat (Shi-Spn5H), were examined for their heading characters. The addition line Shi-NG5H showed a significantly lower vernalization requirements in comparison with 'Shinchunaga' wheat, whereas Shi-Spn5H did not. Furthermore, both NG5H and Spn5H chromosomes shortened narrow-sense earliness and increased photoperiodic sensitivity in wheat, but the effects of Spn5H were weaker than those of NG5H. The fact that NG5H and Spn5H showed differential effects on heading characters in wheat demonstrated that the heading characters were altered by the function of the barley genes located on 5H chromosomes, not merely by the aneuploid effect alone.

Original languageEnglish
Pages (from-to)195-200
Number of pages6
JournalHereditas
Volume136
Issue number3
DOIs
Publication statusPublished - Sep 2002
Externally publishedYes

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Hordeum
Triticum
Chromosomes
Aneuploidy
Genes

ASJC Scopus subject areas

  • Genetics

Cite this

Differential effects of cultivated and wild barley 5H chromosomes on heading characters in wheat-barley chromosome addition lines. / Kawahara, Tomoko; Taketa, Shin; Murai, Koji.

In: Hereditas, Vol. 136, No. 3, 09.2002, p. 195-200.

Research output: Contribution to journalArticle

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