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rdf:type
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Description
| - Rozpadavost vřetena klasu je adaptační vlastností planých druhů Poaceae, která umožňuje spontánní rozpad klasu na klásky a šíření obilek. U hexaploidní pšenice (Triticum aestivum L.), pšenice tvrdé (Triticum durum. Desf.) a Aegilops tauschii Coss. bylo pomocí mikrosatelitních markerů provedeno mapování genů podmiňujících rozdíly v rozpadavosti klasového vřetena. Gen Br2 pro rozpadavé vřeteno byl lokalizován na chromosomu 3AS ve vazbě s centromerickým markerem Xgwm32 ve vzdálenosti 13,3 cM. Br3 byl lokalizován na chromosomu 3BS ve vazbě s centromerickým markerem Xgwm72 (14,2 cM). Br1 byl lokalizován na chromosomu 3DS. Jeho vzdálenost od centromerického markeru Xgdm72 byla 23,6 cM. Lokusy Br1, Br2 a Br3 podmiňují rozpad vřetene klasu v místech nad napojením vřetének klásků, takže každý jednotlivý fragment po rozpadu klasu nese klásek, pod kterým zůstává napojena část internodia klasového vřetena. U Ae. tauschii jsou vřetena klasu rozpadavá pod každým napojením klásků. (cs)
- The brittle rachis phenotype is of adaptive value in wild grass species because it causes spontaneous spike shattering. The genes on the homoeologous group 3 chromosomes determine the brittle rachis in Triticeae. A few genotypes with brittle rachis have also been found in the cultivated Triticum. Using microsatellite markers, the homoeologous genes for brittle rachis were mapped in hexaploid wheat (Triticum aestivum L.), durum wheat (Triticum turgidum L. conv. durum /Desf./) and Aegilops tauschii Coss. On chromosome 3AS, the gene for brittle rachis, Br2, was linked with the centromeric marker, Xgwm32, at the distance of 13.3 cM. Br3 was located on chromosome 3BS and linked with the centromeric marker, Xgwm72 (14.2 cM). Br1 was located on chromosome 3DS. The distance from the centromeric marker Xgdm72 was 23,6 cM. The loci Br1, Br2 and Br3 determine disarticulation of rachides above the junction of the rachilla with the rachis so that a fragment of rachis is attached below each spikelet.
- The brittle rachis phenotype is of adaptive value in wild grass species because it causes spontaneous spike shattering. The genes on the homoeologous group 3 chromosomes determine the brittle rachis in Triticeae. A few genotypes with brittle rachis have also been found in the cultivated Triticum. Using microsatellite markers, the homoeologous genes for brittle rachis were mapped in hexaploid wheat (Triticum aestivum L.), durum wheat (Triticum turgidum L. conv. durum /Desf./) and Aegilops tauschii Coss. On chromosome 3AS, the gene for brittle rachis, Br2, was linked with the centromeric marker, Xgwm32, at the distance of 13.3 cM. Br3 was located on chromosome 3BS and linked with the centromeric marker, Xgwm72 (14.2 cM). Br1 was located on chromosome 3DS. The distance from the centromeric marker Xgdm72 was 23,6 cM. The loci Br1, Br2 and Br3 determine disarticulation of rachides above the junction of the rachilla with the rachis so that a fragment of rachis is attached below each spikelet. (en)
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Title
| - Comparative mapping of genes for brittle rachis in Triticum and Aegilops
- Srovnávací mapování genů pro rozpadavost klasového vřetena u Triticum a Aegilops (cs)
- Comparative mapping of genes for brittle rachis in Triticum and Aegilops (en)
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skos:prefLabel
| - Comparative mapping of genes for brittle rachis in Triticum and Aegilops
- Srovnávací mapování genů pro rozpadavost klasového vřetena u Triticum a Aegilops (cs)
- Comparative mapping of genes for brittle rachis in Triticum and Aegilops (en)
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skos:notation
| - RIV/25328859:_____/05:#0000006!RIV06-MSM-25328859
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/25328859:_____/05:#0000006
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Triticum aestivum; Aegilops tauschii; brittle rachis; homoeologous genes; mapping (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Czech Journal of Genetics and Plant Breeding
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Martinek, Petr
- Watanabe, Nobuyoshi
- Fujii, Yuko
- Takesada, Naoto
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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