中国园艺文摘
中國園藝文摘
중국완예문적
CHINESE HORTICULTURE ABSTRACTS
2013年
8期
12-14,32
,共4页
石竹属%种%染色体核型
石竹屬%種%染色體覈型
석죽속%충%염색체핵형
Dianthus%species%karyotype
应用改进的染色体制片方法研究新疆2种石竹属植物的核型,探讨其核型差异。结果表明:多分枝石竹的细胞染色体数为2n=30,其中中部着丝点染色体(m)为11对,近中部着丝点染色体(sm)为4对,核型为2A型,核型公式为2n=2x=30=22m+8sm;准噶尔石竹的细胞染色体数为2n=30,其中中部着丝点染色体(m)为9对,近中部着丝点染色体(sm)为6对,核型为2A型,核型公式为2n=2x=28=18m+12sm。2种石竹属植物染色体相对长度、m、sm染色体的数量组成、核型不对称系数(AS.K%)及最长与最短染色体的比值均存在明显差异。
應用改進的染色體製片方法研究新疆2種石竹屬植物的覈型,探討其覈型差異。結果錶明:多分枝石竹的細胞染色體數為2n=30,其中中部著絲點染色體(m)為11對,近中部著絲點染色體(sm)為4對,覈型為2A型,覈型公式為2n=2x=30=22m+8sm;準噶爾石竹的細胞染色體數為2n=30,其中中部著絲點染色體(m)為9對,近中部著絲點染色體(sm)為6對,覈型為2A型,覈型公式為2n=2x=28=18m+12sm。2種石竹屬植物染色體相對長度、m、sm染色體的數量組成、覈型不對稱繫數(AS.K%)及最長與最短染色體的比值均存在明顯差異。
응용개진적염색체제편방법연구신강2충석죽속식물적핵형,탐토기핵형차이。결과표명:다분지석죽적세포염색체수위2n=30,기중중부착사점염색체(m)위11대,근중부착사점염색체(sm)위4대,핵형위2A형,핵형공식위2n=2x=30=22m+8sm;준갈이석죽적세포염색체수위2n=30,기중중부착사점염색체(m)위9대,근중부착사점염색체(sm)위6대,핵형위2A형,핵형공식위2n=2x=28=18m+12sm。2충석죽속식물염색체상대장도、m、sm염색체적수량조성、핵형불대칭계수(AS.K%)급최장여최단염색체적비치균존재명현차이。
Using an improved chromosome preparation method, the differences of the karyotypes within two species of Dianthus from Xinjiang was studied. The karyotype formulae of D. ramosissimus was 2n=2x=30=22m+8sm. Among them 22 pairs are metacentric(m), and 8 pairs are submetacentric (sm). That of D. soongoricus was 2n=2x=30=18m+12sm. Among them 18 pairs are metacentric(m), and 12 pairs are submetacentric (sm). The karyotypes of two cultivars all belong to 2A type in karyotypic classification. There are significant differences in relative length of chromosome, AS.K% and the ratio of the longest to the shortest chromosome between D. ramosissimus and D. soongoricus.