Abstract
Many genes in the genic male sterile A/B line (Bajh97-01A/B) of Chinese cabbage pak choi (Brassica campestris L. subsp. chinensis Makino) are expressed differentially, and some play critical roles in the formation of pollen walls. In this study, one of these genes, Brassica campestris Male Fertility 16 (BcMF16), has been isolated and characterized. The BcMF16 gene shares approximately 85% nucleotide sequence homology with two exopolygalacturonase (EC3.2.1.67) genes of Arabidopsis thaliana. Cluster analysis of polygalacturonase peptides indicate that BcMF16 belongs to the pollen polygalacturonase clade. Quantitative real-time PCR analysis has revealed that BcMF16 is specifically expressed in reproductive tissues of the fertile line of genic male sterile A/B line of Chinese cabbage pak choi, and that expression levels dramatically increased during later stages of pollen development. In situ hybridization has demonstrated that BcMF16 is specifically and transiently expressed in both tapetum and pollen following microspore separation at the tetrad stage.
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Abbreviations
- cDNA-AFLP:
-
cDNA-amplified fragment length polymorphism
- ORF:
-
Open reading frame
- PG:
-
Polygalacturonase
- RACE:
-
Rapid amplification of cDNA ends
- RT-PCR:
-
Reverse transcriptase polymerase chain reaction
- BcMF:
-
Brassica campastris Male Fertile
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Acknowledgment
This work was supported by the Natural Science Foundation of China (no. 31071805) and the Natural Science Foundation of Zhejiang province (Y3090294).
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Zhang, A., Qiu, L., Huang, L. et al. Isolation and Characterization of an Anther-Specific Polygalacturonase Gene, BcMF16, in Brassica campestris ssp. chinensis . Plant Mol Biol Rep 30, 330–338 (2012). https://doi.org/10.1007/s11105-011-0341-2
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DOI: https://doi.org/10.1007/s11105-011-0341-2