Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (7): 93-102.doi: 10.11707/j.1001-7488.20220710
• Research papers • Previous Articles Next Articles
Chuanmei Xu,Zihan Wang,Feng Xie,Xuyin Jin,Xinyan Wu,Rong Chen,Jianqin Huang*
Received:
2021-09-18
Online:
2022-07-25
Published:
2022-11-03
Contact:
Jianqin Huang
CLC Number:
Chuanmei Xu,Zihan Wang,Feng Xie,Xuyin Jin,Xinyan Wu,Rong Chen,Jianqin Huang. Comparison of 45S rDNA and 5S rDNA Distribution Characteristics of 12 Bamboo Species[J]. Scientia Silvae Sinicae, 2022, 58(7): 93-102.
Fig.1
The distribution of 45S rDNA (green) and 5S rDNA (red) on the chromosome of four different bamboo species A to D is Phyllostachys edulis, Phyllostachys edulis 'Tao kiang', Phyllostachys edulis 'Heterocycla' and Phyllostachys violascens, respectively, white arrows show the weak signals of 5S rDNA."
Table 1
The distribution of 45S rDNA and 5S rDNA of 12 bamboo species"
竹种名称 Species | 45S rDNA分布特点 Distribution of 45S rDNA | 5S rDNA分布特点 Distribution of 5S rDNA |
毛竹 P. edulis | 1对末端信号 A pair of terminal signals | 2对信号,1对强信号位于染色体末端,1对微弱信号位于另1对染色体近中间区域 Two pairs of signals, the pair of strong signals are located at the end of the chromosome, another pair of weak signals are located near the middle region of the chromosome |
花毛竹 P. edulis ‘Tao kiang’ | 1对末端信号 A pair of terminal signals | 2对信号,1对强信号位于染色体末端,1对微弱信号位于另1对染色体近中间区域 Two pairs of signals, the pair of strong signals are located at the end of the chromosome, another pair of weak signals are located near the middle region of the chromosome |
龟甲竹 P. edulis ‘Heterocycla’ | 1对近末端信号 A pair of subterminal signals | 2对信号,1对强信号位于染色体末端,1对微弱信号位于另1对染色体近中间区域 Two pairs of signals, the pair of strong signals are located at the end of the chromosome, another pair of weak signals are located near the middle region of the chromosome. |
早竹 P. violascens | 1对末端信号 A pair of terminal signal | 2对较强的信号,均位于染色体近中间位置 Two pairs of strong signals are located near the middle region of the chromosome |
白哺鸡竹 P. dulcis | 1对末端信号, 其中一个位点发生了一定断裂 A pair of terminal signals, one of them is broken | 2对较强的信号,均位于染色体近中间位置 Two pairs of strong signals are located near the middle region of the chromosome. |
黄秆乌哺鸡竹P. vivax f. aureocaulis | 1对末端信号,存在一定的断裂 A pair of broken terminal signals | 2对信号,均位于染色体近中间位置 Two pairs of signals are located near the middle region of the chromosome |
斑竹 P. reticulata ‘Lacrima-deae’ | 1对末端信号,存在一定的断裂 A pair of broken terminal signals | 2对信号,均位于染色体近中间位置 Two pairs of signals are located near the middle region of the chromosome |
人面竹 P. aurea | 1对末端信号,其中一个位点发生了一定断裂 A pair of terminal signals, one of them is broken | 2对信号,1对信号强度相似,另1对信号表现为1强1弱 Two pairs of signals, one pair are similar, another pair are different in intensity |
金镶玉竹 P. aureosulcata ‘Spectabilis’ | 1对末端信号,其中一个位点发生了一定断裂 A pair of terminal signals, one of them is broken | 3个信号,2个位于染色体近中间位置,表现1强1弱,1个位于染色体末端,信号较强 Three different signals, two of them are different in intensity and located near the middle region of the chromosome, the last one is strong and located at the end of the chromosome |
紫竹 P. nigra | 1强1弱2个信号,强信号易断裂 Two different strength signals, the strong one is easy to break. | 3个信号,1对信号很强,位于染色体末端,另1个信号较弱,位于染色体近中间位置 Three signals, a strong pair are located at the end of the chromosome, another weak signal is located near the middle region of the chromosome |
茶秆竹 P. amabilis | 1对近末端信号,其中一个位点易断裂成2段 A pair of terminal signals, one of them easily breaks into 2 segments | 1对较弱的信号,位于染色体短臂近着丝粒部位 A pair of weak signals are located near the centromere of the short arm |
大明竹 P. gramineus | 2个不同的末端信号 Two different terminal signals | 3个信号,2个位于染色体短臂中间,另1个位于染色体近中间区域 Three signals, two are located at the middle of the short arm, the third located near the middle region of the chromosome |
Fig.4
The distribution of 45S rDNA (green) and 5S rDNA (red) on the chromosome of two different bamboo species A1 and B is the distribution of 45S rDNA (green) and 5S rDNA(red)on the chromosome of Pseudoasa amabilis and Pleioblastus gramineus, respectively. A2 is the distribution of 45S rDNA (red) on the Pseudoasa amabilis."
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