マカロニコムギにおける5B-5D染色体重複置換系統〔英文〕

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概要

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• On the bases of morphological features, two plants having 28 chromosomes were selected in a selfed progeny of 13"+2; plant that was obtained from recurrent-backcrossing of the offspring of monosomic 5B common wheat (Chinese Spring)×durum wheat (Stewart) with Stewart. Those plants were crossed with Stewart durum and with ditelosomic 5D of Chinese Spring. Resulted F1 individuals showed exclusively a meiotic pairing of 13"+2 in the former cross and 1"hm+13"+7 in the latter, where one heteromorphic pair belongs to chromosome 5D. Therefore, those two plants could be identified as the disomic substitution of 5D for 5B of Stewart durum.The substitution line was little different from normal Stewart, showing thicker culm, lux ear and somewhat early ear emergency. It is highly fertile and can be easily maintained.

著者

• 小野 一

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

• ONO Hajime

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

• MOCHIZUKI AKIRA

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

• NAGAYOSHI TERUTO

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

• 望月 明

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

• 永吉 照人

  Laboratory of Genetics, Faculty of Agriculture, Kobe University

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