带有和不带有 B 染色体的玉米 DNA：比较研究。
DNA from Maize with and without B Chromosomes: A Comparative Study.
机构信息
Departments of Microbiology, University of Washington, Seattle, Washington 98195.
出版信息
Genetics. 1973 Aug;74(4):605-14. doi: 10.1093/genetics/74.4.605.
Abstract
DNA preparations from 5B and 0B maize seedlings are indistinguishable in their buoyant density distribution in CsCl gradients. Their renaturation kinetics are identical at several stringency criteria. DNA competition studies fail to detect any component in 5B DNA redundant sequences which is lacking in 0B DNA. Homologous and heterologous duplexes formed between 5B and 0B DNA have virtually identical melting profiles. The DNA of B chromosomes is concluded to be very closely related to that of A chromosomes.
摘要
5B 和 0B 玉米幼苗的 DNA 制剂在氯化铯梯度中的浮力密度分布无法区分。它们在几个严格标准下的复性动力学是相同的。DNA 竞争研究未能检测到 5B DNA 冗余序列中缺少的任何成分。5B 和 0B DNA 之间形成的同源和异源双链体几乎具有相同的熔解曲线。B 染色体的 DNA 被认为与 A 染色体的 DNA 非常密切相关。
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