CAJ | 학술논문

采用压片法,对黄芩花粉母细胞减数分裂及核型进行了研究.结果表明:黄芩的大多数花粉母细胞减数分裂中染色体的行为正常,在终变期同源染色体配对后可形成9个二价体,后期I染色体以9:9的方式向细胞两极分离,其减数分裂为同时型;在少数花粉母细胞减数分裂中观察到落后染色体、染色体桥等异常行为;其花粉粒育性为76.49%.黄芩的染色体数目为2n=2X=18,核型公式为K(2n)=2X=18=16m+2sm,染色体相对长度组成为2n=1s+4M1+3M2+1L,其核型为"1A"型.
채용압편법,대황금화분모세포감수분렬급핵형진행료연구.결과표명:황금적대다수화분모세포감수분렬중염색체적행위정상,재종변기동원염색체배대후가형성9개이개체,후기I염색체이9:9적방식향세포량겁분리,기감수분렬위동시형;재소수화분모세포감수분렬중관찰도락후염색체、염색체교등이상행위;기화분립육성위76.49%.황금적염색체수목위2n=2X=18,핵형공식위K(2n)=2X=18=16m+2sm,염색체상대장도조성위2n=1s+4M1+3M2+1L,기핵형위"1A"형.
The meiosis of pollen mother cells and karyotype analyzed for the Scutellaria baicalensis Georgi by applying squash method. The result showed that chromosomes of most pollen mother cells were paired as 9 bivalents at diakinesis and segregated as 9:9 at anaphase I. In a few (minority)pollen mother cells Lagging chromosome and chromosomal bridge were founded during meiosis. The meiotic division belongs to the simultaneous type, and the stainability of the pollen grains was 76.49%. The chromosome number was 2n = 18 and karyotype formula was K(2n) = 2x = 18 = 16m + 2sm, with constitution of relative length being 2n = 1s +4MI +3M2 + 1L, and karyotype type belonging to "1A".