000 03117nam a22004937a 4500
001 G94619
003 MX-TxCIM
005 20190829201642.0
008 121211s ||||f| 0 p|p||0|| |
040 _aMX-TxCIM
090 _aCIS-6172
100 1 _aAkhunov, E.
_uInternational Symposium on Genomics of Plant Genetic Resources, II; Bologna (Italy); 24-27 Apr 2010
245 0 0 _aGenome-wide patterns of SNP variation in polyploid wheat
260 _c2010
300 _ap. 46
500 _aAbstract only
520 _aGenome-wide set of SNPs is an essential tool for linkage and association mapping of agronomic traits and studying the genetic variation in populations of cultivated crop species and their wild ancestors. Recent advances in genomic technologies including the development of highly-multiplexed genotyping assays and next-generation sequencing technologies opened new possibilities for the analysis of plant genomes. We adopted these technologies to characterize the patterns of genetic variation in tetraploid and hexaploid wheat. A panel of 480 spring and winter US wheat cultivars was genotyped using 1536-plex Illumina OPA. The SNP genotyping data was used to infer the population structure and genome-wide patterns of genetic diversity and linkage disequilibrium in a collection of wheat cultivars and to assess the utility of an assembled hexaploid wheat panel for LD mapping. A strong effect of breeding on genetic differentiation of cultivars was demonstrated. The sequence-capture and next-generation sequencing approaches were used to resequence 1 kb fragments of 3,500 genes in tetraploid wild emmer and durum wheat. More than 3,000 SNP sites were used to investigate the distribution of mutations differentiating the genomes of wild and domesticated tetraploid wheat. Our study showed that this strategy is fast and very efficient method for the targeted analysis of the regions of interest in highly complex genomes, such as polyploid wheat. The potential impact of new genomic tools on utilization of plant genetic resources for breeding will be discussed.
536 _aGlobal Wheat Program
546 _aEnglish
593 _aLucia Segura
594 _aINT2692
700 1 _92085
_aAnderson, J.A.
700 1 _9423
_aBaenziger, P.S.
700 1 _aBruckner, P.L.,
_ecoaut.
700 1 _aCampbell, K.,
_ecoaut.
700 1 _aCarver, B.F.,
_ecoaut.
700 1 _aChao, S.,
_ecoaut.
700 1 _aChen, J.,
_ecoaut.
700 1 _aClark, D.R.,
_ecoaut.
700 1 _aDubcovsky, J.,
_ecoaut.
700 1 _aDvorak, J.,
_ecoaut.
700 1 _aGlover, K.,
_ecoaut.
700 1 _aHaley, S.,
_ecoaut.
700 1 _aLuo, M.C.,
_ecoaut.
700 1 _aMatnyazov, R.,
_ecoaut.
700 1 _aRudd, J.C.,
_ecoaut.
700 1 _aSaintenac, C.,
_ecoaut.
700 1 _aSims, R.,
_ecoaut.
700 1 _92094
_aSorrells, M.E.
700 1 _aTalbert, L.,
_ecoaut.
700 1 _9851
_aDreisigacker, S.
_gGlobal Wheat Program
_8INT2692
856 4 _yAccess only for CIMMYT Staff
_uhttp://libcatalog.cimmyt.org/download/cis/G94619.pdf
942 _cPRO
_2ddc
999 _c8022
_d8022