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韓國産 호밀의 附屬染色體의 出現頻度와 地理的分布

ON ACCESSORY CHROMOSOMES IN SECALE CEREALE

한국식물학회지 1965년 8권 4호 p.1 ~ 6
Lee Woong-Jik, 민병례,
소속 상세정보
 ( Lee Woong-Jik ) - Seoul National University College of Educationn Department of Biology
민병례 ( Min Byung-Re ) - Seoul National University College of Educationn Department of Biology

Abstract


Cytological observations were carried out to investigate the frequencies and geographical distribution of accessory chromosomes in rye in Korea.
(1) All the 41 strains of rye investigated were found to have accessory chromosomes and the frequencies of accessories are ranged from 2 to 73.3%.
(2) The frequency ranging from 30 to 40% was predominant and it included 13 different strains.
(3) The edaphic factor seemed to play more marked role than the climatic factor in determining geographical distribution of accessories in rye in Korea.
(4) Breakages of A-chromosomes into two fragments were observed in 11 plants. This phenomenon may throw some light on possible origin of accessory chromosomes in rye.

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