Determination of basic chromosome numbers in the genus Saccharum by physical mapping of ribosomal RNA genes
Determination of basic chromosome numbers in the genus Saccharum by physical mapping of ribosomal RNA genes
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DOI：
10.1139/gen-41-2-221
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发表时间：
1998-04-01
期刊：
影响因子：
3.1
通讯作者：
Glaszmann, JC
中科院分区：
文献类型：
--
作者：
D'Hont, A;Ison, D;Glaszmann, JC
利用原位杂交技术，定位了三种主要植物的18 S-5、6S-25 S和5SrDNA位点。对于每个种和每个rDNA家族，在不同的细胞型中的位置和数量的父亲建议存在一个位点和基本染色体数目为10的铁皮石斛和粗壮的和8的密手密。这些结果对现代栽培品种的遗传图谱的影响来自物种S。officinarum和S. spontaneum讨论。
18S-5.6S-25S and 5S ribosomal DNA (rDNA) sites were located by in situ hybridization to the three main species of the Saccharum genus. For each species and each rDNA family, the position and number of sires in the various cytotypes suggested the presence of one locus and basic chromosome numbers of 10 for Saccharum officinarum and Saccharum robustum and 8 for Saccharum spontaneum. The implications of these results for the genetic maps of modern cultivars derived from crosses between the species S. officinarum and S. spontaneum are discussed.