A Comprehensive Rice Transcript Map Containing 6591 Expressed Sequence Tag Sites

To determine the chromosomal positions of expressed rice genes, we have performed an expressed sequence tag (EST) mapping project by polymerase chain reaction-based yeast artificial chromosome (YAC) screening. Specific primers designed from 6713 unique EST sequences derived from 19 cDNA libraries we...

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Veröffentlicht in:The Plant cell 2002-03, Vol.14 (3), p.525-535
Hauptverfasser: Wu, Jianzhong, Maehara, Tomoko, Shimokawa, Takanori, Yamamoto, Shinichi, Harada, Chizuko, Takazaki, Yuka, Ono, Nozomi, Mukai, Yoshiyuki, Koike, Kazuhiro, Yazaki, Jyunshi, Fujii, Fumiko, Shomura, Ayahiko, Ando, Tsuyu, Kono, Izumi, Waki, Kazunori, Yamamoto, Kimiko, Yano, Masahiro, Matsumoto, Takashi, Sasaki, Takuji
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container_end_page 535
container_issue 3
container_start_page 525
container_title The Plant cell
container_volume 14
creator Wu, Jianzhong
Maehara, Tomoko
Shimokawa, Takanori
Yamamoto, Shinichi
Harada, Chizuko
Takazaki, Yuka
Ono, Nozomi
Mukai, Yoshiyuki
Koike, Kazuhiro
Yazaki, Jyunshi
Fujii, Fumiko
Shomura, Ayahiko
Ando, Tsuyu
Kono, Izumi
Waki, Kazunori
Yamamoto, Kimiko
Yano, Masahiro
Matsumoto, Takashi
Sasaki, Takuji
description To determine the chromosomal positions of expressed rice genes, we have performed an expressed sequence tag (EST) mapping project by polymerase chain reaction-based yeast artificial chromosome (YAC) screening. Specific primers designed from 6713 unique EST sequences derived from 19 cDNA libraries were screened on 4387 YAC clones and used for map construction in combination with genetic analysis. Here, we describe the establishment of a comprehensive YAC-based rice transcript map that contains 6591 EST sites and covers 80.8% of the rice genome. Chromosomes 1, 2, and 3 have relatively high EST densities, approximately twice those of chromosomes 11 and 12, and contain 41% of the total EST sites on the map. Most of the EST-dense regions are distributed on the distal regions of each chromosome arm. Genomic regions flanking the centromeres for most of the chromosomes have lower EST density. Recombination frequency in these regions is suppressed significantly. Our EST mapping also shows that 40% of the assigned ESTs occupy only ∼21% of the entire genome. The rice transcript map has been a valuable resource for genetic study, gene isolation, and genome sequencing at the Rice Genome Research Program and should become an important tool for comparative analysis of chromosome structure and evolution among the cereals.
doi_str_mv 10.1105/tpc.010274
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current)
subjects Chromosome Mapping - methods
Chromosomes
Chromosomes, Artificial, Yeast - genetics
Cloning, Molecular
Computational Biology
Contig Mapping - methods
DNA
Expressed Sequence Tags
Gene Expression Profiling
Gene Library
Genes
Genetic mapping
Genetic Markers
Genetic resources
Genetic screening
Genome, Plant
Genomes
Genomics
Genomics Articles
Oryza - genetics
Polymerase chain reaction
Rice
Tandem Repeat Sequences
Transcription, Genetic - genetics
Yeasts
title A Comprehensive Rice Transcript Map Containing 6591 Expressed Sequence Tag Sites
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