KARYOTYPE ANALYSIS AND GENOME RELATIONSHIPS OF 22 DIPLOID SPECIES IN THE TRIBE TRITICEAE
KARYOTYPE ANALYSIS AND GENOME RELATIONSHIPS OF 22 DIPLOID SPECIES IN THE TRIBE TRITICEAE
复制标题
DOI：
10.1139/g86-015
复制
发表时间：
1986-02-01
期刊：
影响因子：
--
通讯作者：
DEWEY, DR
中科院分区：
文献类型：
--
作者：
HSIAO, C;WANG, RRC;DEWEY, DR
对24个二倍体类群进行了核型分析（大多是多年生植物）属于八个小麦族属，这是由基因组内容定义（基本的七条染色体）：（i）冰草属（P基因组），（ii）偃麦草属（J基因组），（iii）黑麦属（R基因组），（iv）大麦（i基因组），（v）假鹅观草属（S基因组），（vi）新麦草属（N基因组），（vii）南方古草属（W基因组），和（viii）Critesion（H基因组）。除了传统的核型制备外，还通过交互式微计算机程序分析中期根尖染色体，该程序打印染色体按长度排列的染色体组型图。基因组按递减长度排列为R、I、P、N、J、S、H和W（长度范围为61.29 - 39.39 μ m）。几乎无一例外，属内物种的核型表现出基因组特有的模式。形态学上独特的基因组是基因组鉴定中有用的诊断特征，并且可以补充基因组分析中染色体配对的解释。
Karyotypes were analyzed on 24 diploid taxa (mostly perennials) belonging to eight Triticeae genera, which are defined by genome content (basic set of seven chromosomes): (i) Agropyron (P genome), (ii) Thinopyrum (J genome), (iii) Secale (R genome), (iv) Hordeum (i genome), (v) Pseudoroegneria (S genome), (vi) Psathyrostachys (N genome), (vii) Australopyrum (W genome), and (viii) Critesion (H genome). In addition to traditional karyotype preparations, the metaphase root-tip chromosomes were analyzed by an interactive microcomputer program that printed an idiogram in which chromosomes were arranged by length. Genomes, arranged by decreasing length, are R, I, P, N, J, S, H, and W (with lengths ranging from 61.29 to 39.39 .mu.m). Almost without exception, karyotypes of species within a genus manifest a pattern that is unique to the genome. Morphologically unique genomes are useful diagnostic features in genome identification and can complement interpretation of chromosome pairing in genome analysis.