Homologs of the FB_MR5 fire blight resistance gene of Malus ×robusta 5 are present in other Malus wild species accessions
Homologs of the FB_MR5 fire blight resistance gene of Malus ×robusta 5 are present in other Malus wild species accessions
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Malus årobusta 5 的 FB_MR5 火疫病抗性基因的同源物存在于其他 Malus 野生物种种质中
DOI:
10.1007/s11295-015-0962-y
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发表时间:
2016
影响因子:
2.4
通讯作者:
Flachowsky H
中科院分区:
文献类型:
--
作者:
Wöhner T;Szentgyörgyi E;Peil A;Richter K;Hanke M-V;Flachowsky H
Breeding for fire blight resistance is a major goal of nearly all apple breeding programs worldwide. Resources for resistance can be found inMaluswild species accession such asMalus×robusta5 (Mr5) which carries theFB_MR5CC-NBS-LRR fire blight resistance gene. To study the occurrence ofFB_MR5in other genetic resources ofMalus, a total of 394 wild species accessions of three international germplasm collections were screened using the markers CH03e03 and FEM18 that flank theFB_MR5locus of Mr5. Five accessions exhibited the allele sizes linked toFB_MR5for both markers. All five accessions belong to the speciesM.×robusta(Carrière) Rehder. In addition, several accessions of other closely relatedMaluswild species amplified the 224 bp fragment linked to FEM18 and a slightly larger fragment for CH03e03. The presence and expression ofFB_MR5and homologs inM.×robustaand four more accessions were further tested using gene-specific primers. Fragments of identical size could be detected in six different genotypes ofM.×robusta. Sequence analysis revealed the presence of alleles ofFB_MR5in the accessions ‘Korea’ and ‘Leucocarpa’. Homologs ofFB_MR5were found in different accessions ofMalus prunifoliaandMalus baccata, twoMalusspecies closely related toM.×robusta. Their functionality is suggested by results obtained by artificial shoot inoculation with the pathogen. Based on the results using the simple sequence repeat (SSR) markers CH03e03 and FEM18, the gene-specific primers and the analysis of the ‘Golden Delicious’ whole genome sequence, we assume thatFB_MR5is a unique gene which most likely evolved fromM. baccataas the common ancestor ofM. ×robustaandM. prunifolia.
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DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
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通讯作者:
D. Hattermann
DOI:
10.1007/978-3-642-14228-4
发表时间:
2011
期刊:
--
影响因子:
--
作者:
C. Kole
通讯作者:
C. Kole
影响因子:
1.8
作者:
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Peil, Andreas
影响因子:
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作者:
Vogt, Isabelle;Woehner, Thomas;Peil, Andreas
通讯作者:
Peil, Andreas
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
H. Aldwinckle;H. Gustafson;P. Forsline
通讯作者:
P. Forsline