Fertility in barley flowers depends on Jekyll functions in male and female sporophytes.
Fertility in barley flowers depends on Jekyll functions in male and female sporophytes.
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大麦花的生育力取决于雄性和雌性孢子体的 Jekyll 功能
DOI:
10.1111/j.1469-8137.2011.04032.x
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Borisjuk L.
中科院分区:
文献类型:
--
作者:
Radchuk V;Kumlehn J;Rutten T;Sreenivasulu N;Radchuk R;Rolletschek H;Herrfurth C;Feussner I;Borisjuk L.
•Owing to its evolutional plasticity and adaptability, barley (Hordeum vulgare) is one of the most widespread crops in the world. Despite this evolutionary success, sexual reproduction of small grain cereals is poorly investigated, making discovery of novel genes and functions a challenging priority. Barley geneJekyllappears to be a key player in grain development; however, its role in flowers has remained unknown.•Here, we studied RNAi lines of barley, whereJekyllexpression was repressed to different extents. The impact ofJekyllon flower development was evaluated based on differential gene expression analysis applied to anthers and gynoecia of wildtype and transgenic plants, as well as using isotope labeling experiments, hormone analysis, immunogold‐ and TUNEL‐assays andin situhybridization.•Jekyllis expressed in nurse tissues mediating gametophyte–sporophyte interaction in anthers and gynoecia, where JEKYLL was found within the intracellular membranes. The repression ofJekyllimpaired pollen maturation, anther dehiscence and induced a significant loss of fertility. The presence of JEKYLL on the pollen surface also hints at possible involvement in the fertilization process.•We conclude that the role ofJekyllin cereal sexual reproduction is clearly much broader than has been hitherto realized.
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影响因子:
--
作者:
C. L. R. Wetzel;W. Jensen
通讯作者:
W. Jensen
影响因子:
6.9
作者:
Borg, Michael;Brownfield, Lynette;Twell, David
通讯作者:
Twell, David
影响因子:
4.3
作者:
T. Rutten;C. Krüger;M. Melzer;U. W. Stephan;R. Hell
通讯作者:
R. Hell
DOI:
10.1073/pnas.0305448101
发表时间:
2004-03-02
影响因子:
11.1
作者:
Fiebig, A;Kimport, R;Preuss, D
通讯作者:
Preuss, D
影响因子:
4.9
作者:
Fujii S;Toriyama K
通讯作者:
Toriyama K