Next Article in Journal
Growth Media Induces Variation in Cell Wall Associated Gene Expression in Arabidopsis thaliana Pollen Tube
Next Article in Special Issue
Molecular Mapping of D1, D2 and ms5 Revealed Linkage between the Cotyledon Color Locus D2 and the Male-Sterile Locus ms5 in Soybean
Previous Article in Journal
Understanding of Leaf Development—the Science of Complexity
Previous Article in Special Issue
Homeotic Genes and the ABCDE Model for Floral Organ Formation in Wheat
Article

SPL8 Acts Together with the Brassinosteroid-Signaling Component BIM1 in Controlling Arabidopsis thaliana Male Fertility

1
Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Cologne 50829, Germany
2
Institute of Developmental Biology, Cologne Biocenter, University of Cologne, Cologne 50674, Germany
*
Authors to whom correspondence should be addressed.
Plants 2013, 2(3), 416-428; https://doi.org/10.3390/plants2030416
Received: 22 April 2013 / Revised: 22 May 2013 / Accepted: 18 June 2013 / Published: 25 June 2013
(This article belongs to the Special Issue Developmental Biology and Biotechnology of Plant Sexual Reproduction)
The non-miR156 targeted SBP-box gene SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 8 (SPL8), plays an important role in Arabidopsis anther development, where its loss-of-function results in a semi-sterile phenotype. Fully male-sterile plants are obtained when a spl8 loss-of-function mutation is introduced into a 35S:MIR156 genetic background, thereby revealing functional redundancy between SPL8 and miR156-targeted SBP-box genes. Here, we show that BIM1, a gene encoding a bHLH protein involved in brassinosteroid signaling and embryonic patterning, functions redundantly with SPL8 in its requirement for male fertility. Although bim1 single mutants displayed a mild fertility problem due to shortened filaments in some flowers, mutation of BIM1 significantly enhanced the semi-sterile phenotype of the spl8 mutant. Expression of both SPL8 and BIM1 was detected in overlapping expression domains during early anther developmental stages. Our data suggest that in regulating anther development, SPL8 and BIM1 function cooperatively in a common complex or in synergistic pathways. Phylogenetic analysis supports the idea of an evolutionary conserved function for both genes in angiosperm anther development. View Full-Text
Keywords: anther development; Arabidopsis thaliana; BIM1; brassinosteroid signaling; male fertility; SPL8 anther development; Arabidopsis thaliana; BIM1; brassinosteroid signaling; male fertility; SPL8
Show Figures

Graphical abstract

MDPI and ACS Style

Xing, S.; Quodt, V.; Chandler, J.; Höhmann, S.; Berndtgen, R.; Huijser, P. SPL8 Acts Together with the Brassinosteroid-Signaling Component BIM1 in Controlling Arabidopsis thaliana Male Fertility. Plants 2013, 2, 416-428. https://doi.org/10.3390/plants2030416

AMA Style

Xing S, Quodt V, Chandler J, Höhmann S, Berndtgen R, Huijser P. SPL8 Acts Together with the Brassinosteroid-Signaling Component BIM1 in Controlling Arabidopsis thaliana Male Fertility. Plants. 2013; 2(3):416-428. https://doi.org/10.3390/plants2030416

Chicago/Turabian Style

Xing, Shuping, Vanessa Quodt, John Chandler, Susanne Höhmann, Rita Berndtgen, and Peter Huijser. 2013. "SPL8 Acts Together with the Brassinosteroid-Signaling Component BIM1 in Controlling Arabidopsis thaliana Male Fertility" Plants 2, no. 3: 416-428. https://doi.org/10.3390/plants2030416

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop