Cytogenetical Studies on the Intergeneric F1 Plants Obtained by Embryo-culture between Triticurm Timopheevi and Secale cereale and their Open F2 Progenies

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概要

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• 1. The cytogenetical studies were carried out on F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique and open F2 progenies derived from them.2. In somatic cells of F1's, 21 chromosomes were ascertained, and their modal chromosome configuration at MI of PMCs was in 1II+19II.3. From two F1's, 26 mature open F2 plants were obtained, the 2n chromosome numbers of which varied from 23 to 30 successively, except one plant having 2n=41. No amphidiploid was to be found among them.4. From the results of cytogenetical and morphological studies, it was concluded that all of the open F2 plants, except one having 2n=41, were natural back-crossed plants with the rye pollen, normal, accessory chromosomic or translocated with x-ray grown adjacent to F1's the preceding year.Only one plant having 2n=41 was also proved to be a natural back-crossed plant with the common wheat pollen.

• 日本遺伝学会の論文

著者

• MUKADE Koichiro

  Morioka Experimental Farm

• WATANABE Yoshio

  Morioka Experimental Farm

関連論文

• Cytogenetical Studies on the Intergeneric F1 Plants Obtained by Embryo-culture between Triticurm Timopheevi and Secale cereale and their Open F2 Progenies

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