The effect of INDEHISCENT point mutations on silique shatter resistance in oilseed rape (Brassica napus).

Braatz, Janina, Harloff, Hans-Joachim, Emrani, Nazgol, Elisha, Chirlon, Heepe, Lars, Gorb, Stanislav and Jung, Christian (2018) The effect of INDEHISCENT point mutations on silique shatter resistance in oilseed rape (Brassica napus). Open Access Theoretical and Applied Genetics, 131 . DOI 10.1007/s00122-018-3051-4.

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Abstract

Silique shattering is a major factor reducing the yield stability of oilseed rape (Brassica napus). Attempts to improve shatter resistance often include the use of mutations in target genes identified from Arabidopsis (Arabidopsis thaliana). A variety of phenotyping methods assessing the level of shatter resistance were previously described. However, a comparative and comprehensive evaluation of the methods has not yet been undertaken. We verified the increase of shatter resistance in indehiscent double knock-down mutants obtained by TILLING with a systematic approach comparing three independent phenotyping methods. A positive correlation of silique length and shatter resistance was observed and accounted for in the analyses. Microscopic studies ruled out the influence of different lignification patterns. Instead, we propose a model to explain increased shattering resistance of indehiscent rapeseed mutants by altered cell shapes and sizes within the contact surfaces of replum and valves.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/s00122-018-3051-4
ISSN: 0040-5752
Projects: Future Ocean
Date Deposited: 01 Mar 2018 12:00
Last Modified: 26 Mar 2019 12:41
URI: http://oceanrep.geomar.de/id/eprint/42079

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