Development of Expressed Sequence Tag (EST)-Based Cleaved Amplified Polymorphic Sequence (CAPS) Markers of Tea Plant and Their Application to Cultivar Identification

2011 ◽  
Vol 59 (5) ◽  
pp. 1557-1564 ◽  
Author(s):  
Tomomi Ujihara ◽  
Fumiya Taniguchi ◽  
Jun-ichi Tanaka ◽  
Nobuyuki Hayashi
Keyword(s):  
Expressed Sequence Tag ◽  
Cultivar Identification ◽  
Tea Plant ◽  
Cleaved Amplified Polymorphic Sequence ◽  
Caps Markers ◽  
Expressed Sequence

scholarly journals Integration of EST-CAPS markers into genetic maps of Eucalyptus urophylla and E. tereticornis and their alignment with E. grandis genome sequence

2012 ◽  
Vol 61 (1-6) ◽  
pp. 247-255 ◽  
Author(s):  
X. Yu ◽  
Y. Guo ◽  
X. Zhang ◽  
F. Li ◽  
Q. Weng ◽  
...  
Keyword(s):  
Genome Sequence ◽  
Rapd Markers ◽  
Expressed Sequence Tag ◽  
Random Amplified Polymorphic Dna ◽  
Genetic Maps ◽  
Eucalyptus Urophylla ◽  
Linkage Groups ◽  
Caps Markers ◽  
Expressed Sequence ◽  
Genus Eucalyptus

AbstractA suite of 91 expressed sequence tag (EST) derived cleaved amplified polymorphic sequence (CAPS) markers were developed and used for enriching the genetic maps of Eucalyptus urophylla and E. tereticornis built previously based on random amplified polymorphic DNA (RAPD) markers. The EST-CAPS markers were highly similar to original ESTs, with sequence identity ranging from 92.5% to 100.0%. In linkage analysis, 48 and 42 EST-CAPSs were integrated into the genetic maps of E. urophylla and E. tereticornis, respectively, including 13 shared by both maps, while 14 were unmapped. For E. urophylla, the final map had a total length of 1789.5 cM and a mean interval between markers of 9.7 cM, being 284.9 cM larger and 1.3 cM less than those of the prior RAPD map, respectively. For E. tereticornis, the final map had a length of 1488.1 cM and a mean interval of 10.3 cM, being 452.4 and 0.2 cM more than the prior map, respectively. All the 77 newly mapped EST-CAPSs found each at least one homologue in the E. grandis genome sequence released recently, and conserved synteny and colinearity were observed between E. grandis genome and our linkage groups. The enriched maps would provide a set of useful markers for genome analysis, comparative mapping and fine-mapping of important genes located in conserved regions for the important tree genus Eucalyptus.

scholarly journals Survey of transposable elements in sugarcane expressed sequence tags (ESTs)

2001 ◽  
Vol 24 (1-4) ◽  
pp. 147-154 ◽  
Author(s):  
Magdalena Rossi ◽  
Paula Gonçalves Araujo ◽  
Marie-Anne Van Sluys
Keyword(s):  
Transposable Elements ◽  
Expressed Sequence Tags ◽  
Expressed Sequence Tag ◽  
Cultivar Identification ◽  
Plant Tissues ◽  
Ltr Retrotransposons ◽  
Cdna Sequences ◽  
Pattern Polymorphism ◽  
Expressed Sequence ◽  
Potential Use

The sugarcane expressed sequence tag (SUCEST) project has produced a large number of cDNA sequences from several plant tissues submitted or not to different conditions of stress. In this paper we report the result of a search for transposable elements (TEs) revealing a surprising amount of expressed TEs homologues. Of the 260,781 sequences grouped in 81,223 fragment assembly program (Phrap) clusters, a total of 276 clones showed homology to previously reported TEs using a stringent cut-off value of e-50 or better. Homologous clones to Copia/Ty1 and Gypsy/Ty3 groups of long terminal repeat (LTR) retrotransposons were found but no non-LTR retroelements were identified. All major transposon families were represented in sugarcane including Activator (Ac), Mutator (MuDR), Suppressor-mutator (En/Spm) and Mariner. In order to compare the TE diversity in grasses genomes, we carried out a search for TEs described in sugarcane related species O.sativa, Z. mays and S. bicolor. We also present preliminary results showing the potential use of TEs insertion pattern polymorphism as molecular markers for cultivar identification.

Survey of a cDNA library from the turkey (Meleagris gallopavo)

Genome ◽  
2005 ◽  
Vol 48 (1) ◽  
pp. 12-17 ◽  
Author(s):  
L D Chaves ◽  
J A Rowe ◽  
K M Reed
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Expressed Sequence Tags ◽  
Expressed Sequence Tag ◽  
Meleagris Gallopavo ◽  
Whole Genome Sequence ◽  
Snp Discovery ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Important Species ◽  
Expressed Sequence

Genome characterization and analysis is an imperative step in identifying and selectively breeding for improved traits of agriculturally important species. Expressed sequence tags (ESTs) represent a transcribed portion of the genome and are an effective way to identify genes within a species. Downstream applications of EST projects include DNA microarray construction and interspecies comparisons. In this study, 694 ESTs were sequenced and analyzed from a library derived from a 24-day-old turkey embryo. The 437 unique sequences identified were divided into 76 assembled contigs and 361 singletons. The majority of significant comparative matches occurred between the turkey sequences and sequences reported from the chicken. Whole genome sequence from the chicken was used to identify potential exon–intron boundaries for selected turkey clones and intron-amplifying primers were developed for sequence analysis and single nucleotide polymorphism (SNP) discovery. Identified SNPs were genotyped for linkage analysis on two turkey reference populations. This study significantly increases the number of EST sequences available for the turkey.Key words: turkey, cDNA, expressed sequence tag, single nucleotide polymorphism.

Screening and analysis of differentially expressed genes from an alien addition line of wheat Thinopyrum intermedium induced by barley yellow dwarf virus infection

Genome ◽  
2004 ◽  
Vol 47 (6) ◽  
pp. 1114-1121 ◽  
Author(s):  
Shu-Mei Jiang ◽  
Long Zhang ◽  
Jun Hu ◽  
Rui Shi ◽  
Guang-He Zhou ◽  
...  
Keyword(s):  
Differentially Expressed Genes ◽  
Expressed Sequence Tag ◽  
Barley Yellow Dwarf Virus ◽  
Differentially Expressed ◽  
Addition Line ◽  
Alien Chromosome ◽  
Thinopyrum Intermedium ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Expressed Sequence

The alien addition line TAI-27 contains a pair of chromosomes of Thinopyrum intermedium that carry resistance against barley yellow dwarf virus (BYDV). A subtractive library was constructed using the leaves of TAI-27, which were infected by Schizaphis graminum carrying the GAV strain of BYDV, and the control at the three-leaf stage. Nine differentially expressed genes were identified from 100 randomly picked clones and sequenced. Two of the nine clones were highly homologous with known genes. Of the remaining seven cDNA clones, five clones matched with known expressed sequence tag (EST) sequences from wheat and (or) barley whereas the other two clones were unknown. Five of the nine differentially expressed sequences (WTJ9, WTJ11, WTJ15, WTJ19, and WTJ32) were highly homologous (identities >94%) with ESTs from wheat or barley challenged with pathogens. These five sequences and another one (WTJ18) were also highly homologous (identities >86%) with abiotic stress induced ESTs in wheat or barley. Reverse Northern hybridization showed that seven of the nine differentially expressed cDNA sequences hybridized with cDNA of T. intermedium infected by BYDV. Three of these also hybridized with cDNA of line 3B-2 (a parent of TAI-27) infected by BYDV. The alien chromosome in TAI-27 was microdissected. The second round linker adaptor mediated PCR products of the alien chromosomal DNA were labeled with digoxygenin and used as the probe to hybridize with the nine differentially expressed genes. The analysis showed that seven differentially expressed genes were homologous with the alien chromosome of TAI-27. These seven differentially expressed sequences could be used as ESTs of the alien chromosome of TAI-27. This research laid the foundation for screening and cloning of new specific functional genes conferring resistance to BYDV and probably other pathogens.Key words: suppression subtractive hybridization (SSH), expressed sequence tag (EST), linker adaptor mediated polymerase chain reaction (LA-PCR), chromosome microdissection.

Characterization of expressed sequence tag-derived simple sequence repeat markers for 17 Linum species

Botany ◽  
2010 ◽  
Vol 88 (5) ◽  
pp. 537-543 ◽  
Author(s):  
Yong-Bi Fu ◽  
Gregory W. Peterson
Keyword(s):  
Simple Sequence Repeat ◽  
Expressed Sequence Tag ◽  
Sequence Repeat ◽  
Simple Sequence Repeat Markers ◽  
Linum Usitatissimum L ◽  
Evolutionary Studies ◽  
Expressed Sequence ◽  
Simple Sequence ◽  
Cultivated Flax

One major challenge in genetic and evolutionary studies of wild flax species is the lack of informative molecular markers. A set of 100 informative expressed sequence tag-derived simple sequence repeat (EST-SSR) primer pairs developed in cultivated flax ( Linum usitatissimum L.) were characterized on 35 Linum accessions representing 17 Linum species for their transferability to other Linum species. Ninety-nine primer pairs displayed scorable polymorphisms across 35 Linum samples and generated 627 bands likely from 121 loci. About 50% of the detected bands occurred only in three or fewer samples. A total of 393 bands, likely from 116 loci, were detected by 97 primer pairs in Linum bienne Mill. samples, but only up to 60 bands, likely from up to 39 loci, were revealed by 6 to 37 primer pairs in the samples of the other 15 Linum species. The L. bienne samples displayed 23.7% more EST-SSR variation than the L. usitatissimum samples. These characterized EST-SSR markers should be useful for future genetic diversity and evolutionary studies of Linum species, particularly for the progenitor of cultivated flax.

scholarly journals Development of an Expressed Sequence Tag (EST) Resource for Wheat (Triticum aestivumL.)

Genetics ◽  
2004 ◽  
Vol 168 (2) ◽  
pp. 585-593 ◽  
Author(s):  
G. R. Lazo ◽  
S. Chao ◽  
D. D. Hummel ◽  
H. Edwards ◽  
C. C. Crossman ◽  
...  
Keyword(s):  
Expressed Sequence Tag ◽  
Expressed Sequence

scholarly journals Integration of Expressed Sequence Tag Data Flanking Predicted RNA Secondary Structures Facilitates Novel Non-Coding RNA Discovery

PLoS ONE ◽  
2011 ◽  
Vol 6 (6) ◽  
pp. e20561 ◽  
Author(s):  
Paul M. Krzyzanowski ◽  
Feodor D. Price ◽  
Enrique M. Muro ◽  
Michael A. Rudnicki ◽  
Miguel A. Andrade-Navarro
Keyword(s):  
Expressed Sequence Tag ◽  
Secondary Structures ◽  
Rna Secondary Structures ◽  
Non Coding Rna ◽  
Expressed Sequence

Gene expression profile of rabbit cartilage by expressed sequence tag analysis

Gene ◽  
2008 ◽  
Vol 424 (1-2) ◽  
pp. 147-152 ◽  
Author(s):  
Hyuck Joon Kwon ◽  
Hidetoshi Akimoto ◽  
Yoshihiro Ohmiya ◽  
Kenichi Honma ◽  
Kazunori Yasuda
Keyword(s):  
Gene Expression ◽  
Gene Expression Profile ◽  
Expression Profile ◽  
Expressed Sequence Tag ◽  
Rabbit Cartilage ◽  
Expressed Sequence Tag Analysis ◽  
Expressed Sequence
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