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Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum villosum Chromosomes in Wheat Backgrounds.
Molecules. 2017 Jun 14; 22(6)M

Abstract

Oligonucleotide probes and the non-denaturing fluorescence in situ hybridization (ND-FISH) technique are widely used to analyze plant chromosomes because they are convenient tools. New oligonucleotide probes, Oligo-Ku, Oligo-3B117.1, Oligo-3B117.2, Oligo-3B117.2.1, Oligo-3B117.3, Oligo-3B117.4, Oligo-3B117.5, Oligo-3B117.6, Oligo-pTa71A-1, Oligo-pTa71A-2, Oligo-pTa71B-1, Oligo-pTa71B-2, Oligo-pTa71C-1, Oligo-pTa71C-2, Oligo-pTa71C-3 and Oligo-pTa71D were designed based on the repetitive sequences KU.D15.15, pSc119.2-like sequence 3B117 and pTa71. Oligonucleotide probe (GT)₇ was also used. Oligo-Ku and (GT)₇ can be together used to identify Dasypyrum villosum from wheat chromosomes and to distinguish individual D. villosum chromosomes. The oligonucleotide probes that were derived from the same repeat sequence displayed different signal intensity and hybridization sites on the same chromosomes. Both the length and the nucleotide composition of oligonucleotide probes determined their signal intensity. For example, Oligo-3B117.2 (25 bp) and Oligo-pTa71A-2 (46 bp) produced the strongest signals on chromosomes of wheat (Triticum aestivum L.), rye (Secale cereale L.), barley (Hordeum vulgare ssp. vulgare) or D. villosum, the signal of Oligo-3B117.4 (18 bp) on the short arm of 7B chromosome was weaker than that of Oligo-3B117.2.1 (15 bp) and Oligo-3B117.3 (16 bp), and Oligo-pTa71A-1 (38 bp) produced the same strong signals as Oligo-pTa71A-2 did on 1B and 6B chromosomes, but its signals on 1R and 1V chromosomes were weaker than the ones of Oligo-pTa71A-2. Oligonucleotide probes and ND-FISH analysis can reflect the distribution and structural statues of different segments of tandem repeats on chromosomes. The possible reasons why different segments derived from the same repeat sequence produced different signal patterns are discussed.

Authors+Show Affiliations

Provincial Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu 611130, China. xiaozq705@sina.com.Provincial Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu 611130, China. tangshuyao705708@sina.com. Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China. tangshuyao705708@sina.com.Provincial Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu 611130, China. qiuling705@sina.com.Provincial Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu 611130, China. zxtang@sicau.edu.cn. Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China. zxtang@sicau.edu.cn.Provincial Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu 611130, China. fushulan@sicau.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28613230

Citation

Xiao, Zhiqiang, et al. "Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum Villosum Chromosomes in Wheat Backgrounds." Molecules (Basel, Switzerland), vol. 22, no. 6, 2017.
Xiao Z, Tang S, Qiu L, et al. Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum villosum Chromosomes in Wheat Backgrounds. Molecules. 2017;22(6).
Xiao, Z., Tang, S., Qiu, L., Tang, Z., & Fu, S. (2017). Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum villosum Chromosomes in Wheat Backgrounds. Molecules (Basel, Switzerland), 22(6). https://doi.org/10.3390/molecules22060973
Xiao Z, et al. Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum Villosum Chromosomes in Wheat Backgrounds. Molecules. 2017 Jun 14;22(6) PubMed PMID: 28613230.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Oligonucleotides and ND-FISH Displaying Different Arrangements of Tandem Repeats and Identification of Dasypyrum villosum Chromosomes in Wheat Backgrounds. AU - Xiao,Zhiqiang, AU - Tang,Shuyao, AU - Qiu,Ling, AU - Tang,Zongxiang, AU - Fu,Shulan, Y1 - 2017/06/14/ PY - 2017/04/28/received PY - 2017/06/08/revised PY - 2017/06/09/accepted PY - 2017/6/15/entrez PY - 2017/6/15/pubmed PY - 2018/3/16/medline KW - ND-FISH KW - Triticeae KW - chromosome KW - oligonucleotide probe KW - tandem repeats JF - Molecules (Basel, Switzerland) JO - Molecules VL - 22 IS - 6 N2 - Oligonucleotide probes and the non-denaturing fluorescence in situ hybridization (ND-FISH) technique are widely used to analyze plant chromosomes because they are convenient tools. New oligonucleotide probes, Oligo-Ku, Oligo-3B117.1, Oligo-3B117.2, Oligo-3B117.2.1, Oligo-3B117.3, Oligo-3B117.4, Oligo-3B117.5, Oligo-3B117.6, Oligo-pTa71A-1, Oligo-pTa71A-2, Oligo-pTa71B-1, Oligo-pTa71B-2, Oligo-pTa71C-1, Oligo-pTa71C-2, Oligo-pTa71C-3 and Oligo-pTa71D were designed based on the repetitive sequences KU.D15.15, pSc119.2-like sequence 3B117 and pTa71. Oligonucleotide probe (GT)₇ was also used. Oligo-Ku and (GT)₇ can be together used to identify Dasypyrum villosum from wheat chromosomes and to distinguish individual D. villosum chromosomes. The oligonucleotide probes that were derived from the same repeat sequence displayed different signal intensity and hybridization sites on the same chromosomes. Both the length and the nucleotide composition of oligonucleotide probes determined their signal intensity. For example, Oligo-3B117.2 (25 bp) and Oligo-pTa71A-2 (46 bp) produced the strongest signals on chromosomes of wheat (Triticum aestivum L.), rye (Secale cereale L.), barley (Hordeum vulgare ssp. vulgare) or D. villosum, the signal of Oligo-3B117.4 (18 bp) on the short arm of 7B chromosome was weaker than that of Oligo-3B117.2.1 (15 bp) and Oligo-3B117.3 (16 bp), and Oligo-pTa71A-1 (38 bp) produced the same strong signals as Oligo-pTa71A-2 did on 1B and 6B chromosomes, but its signals on 1R and 1V chromosomes were weaker than the ones of Oligo-pTa71A-2. Oligonucleotide probes and ND-FISH analysis can reflect the distribution and structural statues of different segments of tandem repeats on chromosomes. The possible reasons why different segments derived from the same repeat sequence produced different signal patterns are discussed. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/28613230/Oligonucleotides_and_ND_FISH_Displaying_Different_Arrangements_of_Tandem_Repeats_and_Identification_of_Dasypyrum_villosum_Chromosomes_in_Wheat_Backgrounds_ L2 - https://www.mdpi.com/resolver?pii=molecules22060973 DB - PRIME DP - Unbound Medicine ER -