survey sequence
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2021 ◽  
Vol 500 ◽  
pp. 119648
Author(s):  
Marcus Vinicio Neves d'Oliveira ◽  
Evandro Orfanó Figueiredo ◽  
Danilo Roberti Alves de Almeida ◽  
Luis Claudio Oliveira ◽  
Carlos Alberto Silva ◽  
...  


Sugar Tech ◽  
2020 ◽  
Author(s):  
Qiaoying Zeng ◽  
Zhenghui Huang ◽  
Qinnan Wang ◽  
Jiayun Wu ◽  
Xiaoming Feng ◽  
...  


2017 ◽  
Vol 107 (11) ◽  
pp. 1381-1387 ◽  
Author(s):  
Naeela Qureshi ◽  
Harbans Bariana ◽  
James A. Kolmer ◽  
Hanif Miah ◽  
Urmil Bansal

Leaf rust, caused by Puccinia triticina, is a constraint to durum wheat (Triticum turgidum subsp. durum) production, and landraces are reported to be an important source of resistance. Two Portuguese landraces (Aus26582 and Aus26579) showed resistance against durum-specific P. triticina races and were crossed with a susceptible landrace (Bansi) to develop recombinant inbred line (RIL) populations. Monogenic segregation for leaf rust resistance was observed among both RIL populations. The underlying locus, temporarily named LrAW2, was mapped to the short arm of chromosome 6B in the Aus26582/Bansi population and five DArTseq markers cosegregated with LrAW2. Simple sequence repeat markers sun683 and sun684, developed from the chromosome survey sequence (CSS) contig 6BS_2963854, identified through BlastN search of cosegregating DArTseq markers in the International Wheat Genome Sequencing Consortium database, cosegregated with LrAW2. Comparison of the CSS contig 6BS_2963854-based sequences amplified from parental genotypes led to the development of marker sunKASP_60, which also showed close linkage with LrAW2. Markers sun684 and sunKASP_60 showed close association with LrAW2 in both RIL populations. The amplification of LrAW2-specific products by linked markers in Aus26582, Aus26579, and Guayacan (Lr61) indicated that LrAW2 may be Lr61. The alternate amplicon or haplotype produced with LrAW2-linked markers in Australian durum cultivars demonstrated their effectiveness in marker-assisted selection.



2017 ◽  
Author(s):  
Martin C. Frith ◽  
Sofia Khan

AbstractGenomes mutate and evolve in ways simple (substitution or deletion of bases) and complex (e.g. chromosome shattering). We do not fully understand what types of complex mutation occur, and we cannot routinely characterize arbitrarily-complex mutations in a high-throughput, genome-wide manner. Long-read DNA sequencing methods (e.g. PacBio, nanopore) are promising for this task, because one read may encompass a whole complex mutation. We describe an analysis pipeline to characterize arbitrarily-complex “local” mutations, i.e. intrachromosomal mutations encompassed by one DNA read. We apply it to nanopore and PacBio reads from one human cell line (NA12878), and survey sequence rearrangements, both real and artifactual. Almost all the real rearrangements belong to recurring patterns or motifs: the most common is tandem multiplication (e.g. heptuplication), but there are also complex patterns such as localized shattering, which resembles DNA damage by radiation. Gene conversions are identified, including one between hemoglobin gamma genes. This study demonstrates a way to find intricate rearrangements with any number of duplications, deletions, and repositionings. It demonstrates a probability-based method to resolve ambiguous rearrangements involving highly similar sequences, as occurs in gene conversion. We present a catalog of local rearrangements in one human cell line, and show which rearrangement patterns occur.





2016 ◽  
Vol 71 (7-8) ◽  
pp. 215-223 ◽  
Author(s):  
Yong Huang ◽  
Xiu Ying Ma ◽  
You Bing Yang ◽  
Hong Tao Ren ◽  
Xi Hong Sun ◽  
...  

Abstract MicroRNAs (miRNAs) are a class of small single-stranded, endogenous 21–22 nt non-coding RNAs that regulate their target mRNA levels by causing either inactivation or degradation of the mRNAs. In recent years, miRNA genes have been identified from mammals, insects, worms, plants, and viruses. In this research, bioinformatics approaches were used to predict potential miRNAs and their targets in Nile tilapia from the expressed sequence tag (EST) and genomic survey sequence (GSS) database, respectively, based on the conservation of miRNAs in many animal species. A total of 19 potential miRNAs were detected following a range of strict filtering criteria. To test the validity of the bioinformatics method, seven predicted Nile tilapia miRNA genes were selected for further biological validation, and their mature miRNA transcripts were successfully detected by stem–loop RT-PCR experiments. Using these potential miRNAs, we found 56 potential targets in this species. Most of the target mRNAs appear to be involved in development, metabolism, signal transduction, transcription regulation and stress responses. Overall, our findings will provide an important foundation for further research on miRNAs function in the Nile tilapia.



2014 ◽  
Vol 7 (2) ◽  
pp. 71-83 ◽  
Author(s):  
Paul J. Berkman ◽  
Peter C. Bundock ◽  
Rosanne E. Casu ◽  
Robert J. Henry ◽  
Anne L. Rae ◽  
...  


2010 ◽  
Vol 10 (9) ◽  
pp. 847-853 ◽  
Author(s):  
Keila A.M. Ferreira ◽  
Jeronimo C. Ruiz ◽  
Fabrício C. Dias ◽  
Eliane Lages-Silva ◽  
Luiz R.O. Tosi ◽  
...  


2010 ◽  
Vol 2010 ◽  
pp. 1-17 ◽  
Author(s):  
Yongzhong Lu ◽  
Xiaoyun Yang

MicroRNAs (miRNAs) are a class of endogenous, noncoding, short RNAs directly involved in regulating gene expression at the posttranscriptional level. High conservation of miRNAs in plant provides the foundation for identification of new miRNAs in other plant species through homology alignment. Here, previous known plant miRNAs were BLASTed against the Expressed Sequence Tag (EST) and Genomic Survey Sequence (GSS) databases ofVigna unguiculata, and according to a series of filtering criteria, a total of 47 miRNAs belonging to 13 miRNA families were identified, and 30 potential target genes of them were subsequently predicted, most of which seemed to encode transcription factors or enzymes participating in regulation of development, growth, metabolism, and other physiological processes. Overall, our findings lay the foundation for further researches of miRNAs function inVigna unguiculata.



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