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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-10-19-2257-RE
|2 doi
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|a pubmed24n1224.xml
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|a (DE-627)NLM308952103
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|a (NLM)32310718
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Ma, Justin M
|e verfasserin
|4 aut
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| 245 |
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|a Characterization of Phn15.1, a Newly Identified Phytophthora nicotianae Resistance QTL in Nicotiana tabacum
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.06.2020
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Phytophthora nicotianae is an oomycete that causes black shank, one of the most economically important diseases affecting tobacco production worldwide. Identification and introgression of novel genetic variability affecting partial genetic resistance to this pathogen is important because of the increased durability of partial resistance over time as compared with genes conferring immunity. A previous mapping study identified a quantitative trait locus (QTL), hereafter designated as Phn15.1, with a major effect on P. nicotianae resistance in tobacco. In this research, we describe significantly improved resistance of nearly isogenic lines (NILs) of flue-cured tobacco carrying the introgressed Phn15.1 region derived from highly resistant cigar tobacco cultivar Beinhart 1000. The Phn15.1 region appeared to act in an additive or partially dominant manner to positively affect resistance. To more finely resolve the position of the gene or genes underlying the Phn15.1 effect, the QTL was mapped with an increased number of molecular markers (single-nucleotide polymorphisms) identified to reside within the region. Development and evaluation of subNILs containing varying amounts of Beinhart 1000-derived Phn15.1-associated genetic material permitted the localization of the QTL to a genetic interval of approximately 2.7 centimorgans. Importantly, we were able to disassociate the Beinhart 1000 Phn15.1 resistance alleles from a functional NtCPS2 allele(s) which contributes to the accumulation of a diterpene leaf surface exudate considered undesirable for flue-cured and burley tobacco. Information from this research should be of value for marker-assisted introgression of Beinhart 1000-derived partial black shank resistance into flue-cured and burley tobacco breeding programs
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|a Journal Article
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|a Nicotiana
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| 650 |
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4 |
|a Phytophthora
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|a black shank
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| 650 |
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|a partial resistance
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| 650 |
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4 |
|a plant disease resistance
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| 650 |
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4 |
|a quantitative trait locus
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| 650 |
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4 |
|a tobacco
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| 700 |
1 |
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|a Heim, Crystal B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Humphry, Matt
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nifong, Jessica M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lewis, Ramsey S
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 104(2020), 6 vom: 01. Juni, Seite 1638-1646
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:104
|g year:2020
|g number:6
|g day:01
|g month:06
|g pages:1638-1646
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|u http://dx.doi.org/10.1094/PDIS-10-19-2257-RE
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