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Çѱ¹½Ä¹°ÇÐȸ / v.24, no.4, 1981³â, pp.181-190
ÆÈ´ç»ê È£¹Ð(Secale cereale) B ¿°»öüÀÇ ÃâÇöºóµµ¿¡ ´ëÇÏ¿©
( Frequency of B-chromosomes in Rye (Secale cereale) Cultivated in Paldang )
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1963³âºÎÅÍ 1977³â±îÁö ÆÈ´ç»ê È£¹ÐÀÇ B ¿°»öüÀÇ ÃâÇöºóµµ¸¦ Á¶»çÇÑ °á°ú´Â ´ÙÀ½°ú °°´Ù. 2%(1963), 8%(1964), 8%(1965), 15%(1966), 11.5%(1968), 11.7%(1969), 20%(1975), 19.6%(1976), 12.8%(1977). $x^2$°ËÁ¤ÀÇ °á°ú´Â °¢ ³âµµ¿¡ À־ÀÇ B'ÀÇ ÃâÇöºóµµ »çÀÌ¿¡ À¯ÀÇÂ÷°¡ ¾øÀ½À» ³ªÅ¸³»°í ÀÖ´Ù. 1976³â°ú 1977³â¿¡´Â È£¹Ð ¹çÀ» 10°³ ±¸·Î ³ª´©¾î Àç·á¸¦ ¼öÁýÇÏ¿© B'ÀÇ ºÐÆ÷¿Í Ç¥º»Ã¤ÃëÀÇ °á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù. È£¹ÐÀÇ B'´Â Áý´Ü³»¿¡¼­ ºñ±³Àû ±ÕÀÏÇÏ°Ô ºÐÆ÷µÇ°í ÀÖÀ¸¸ç ÃÖ¼Ò 50°³Ã¼¸¦ °üÂûÇϸé È£¹Ð Áý´ÜÀÇ B'ÀÇ ÃâÇöºóµµ¸¦ ´ë·« ¾Ë ¼ö°¡ ÀÖ¾ú´Ù. ÆÈ´ç»ê È£¹Ð Áý´Ü¿¡¼­ 1966³âºÎÅÍ 1977³â±îÁö °è¼ÓÇÏ¿© ÀüÁÂÀÌÇüÁ¢ÇÕü(T.H)¿¡ ÀÇÇÑ »ç°¡¿°»öü¸¦ °¡Áø °³Ã¼°¡ 1~7%ÀÇ ºóµµ·Î °üÂûµÇ¾ú´Ù.
Rye in Paldang was investigated with regard to the occurrence of B-chromosomes from 1963 through 1977, and frequencies of B-chromosomes were as follows; 2% (1963), 8% (1964), 8% (1965), 15% (1966), 11.5% (1968), 11.7% (1969), 20% (1975), 19.6% (1976), and 12.8% (1977). The result of the chi-square test showed statistically no significant difference between the frequency of B-chromosomes each year. The analysis revealed that distribution of B-chromosomes seemed to be relatively uniform in the rye field. With regard to the sample size 50 plants were quite enough to estimate the frequency of B-chromosomes in rye population. Quadrivalent due to translocation heterozygote were observed in the population of Paldang rye from 1966 through 1977, their frequencies being 1 to 7%. Numerical increase of B-chromosomes in rye due to non-disjunction process in the pollen as well as in the ovules was well-known phenomenon, whereas B-chromosomes tended to be eliminated in meiosis and seed fertility of rye was reduced in the individuals with B-chromosomes. The mechanism of gain or loss for B-chromosomes might support the equilibrium of B-chromosomes in Paldang rye population.
 
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Journal of Plant Biology / v.24, no.4, 1981³â, pp.181-190
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198111922411195)
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