» Articles » PMID: 30341574

The Arabidopsis Nucleoporin NUP1 is Essential for Megasporogenesis and Early Stages of Pollen Development

Overview
Journal Plant Cell Rep
Publisher Springer
Date 2018 Oct 21
PMID 30341574
Citations 8
Authors
Affiliations
Soon will be listed here.
Abstract

Loss-of-function of nucleoporin NUP1 in Arabidopsis causes defect in both male and female gametogenesis. Its ovules are arrested during meiosis, and its pollen grains are aborted at mitosis I. Nuclear pore complex (NPC) plays crucial roles in nucleocytoplasmic trafficking of proteins and RNAs. The NPC contains approximately 30 different proteins termed nucleoporins (NUPs). So far, only a few of plant NUPs have been characterized. The Arabidopsis NUP1 was identified as an ortholog of the yeast NUP1 and animal NUP153. Loss-of-function of NUP1 in Arabidopsis caused fertility defect; however, the molecular mechanism of this defect remains unknown. Here, we found that both male and female gametogenesis of the nup1 mutants were defective. nup1 ovules were arrested from the meiosis stage onward; only approximately 6.7% and 3% ovules of the nup1-1 and nup1-4 mutants developed up to the FG7 stage, respectively. Pollen development of the nup1 mutants was arrested during the first mitotic division. In addition, enlarged pollen grains with increased DNA content were observed in the nup1 mutant. RNA-sequencing showed that expression levels of genes involved in pollen development or regulation of cell size were reduced dramatically in nup1 compared with wild type. These results suggest that NUP1 plays an important role in gametogenesis.

Citing Articles

Identification of differentially expressed miRNAs between male sterile and fertile floral buds in watermelon ( L.) via high-throughput sequencing.

Zhang G, Wei B, Ding Q 3 Biotech. 2024; 14(10):247.

PMID: 39345966 PMC: 11424599. DOI: 10.1007/s13205-024-04084-6.


AUX1, PIN3, and TAA1 collectively maintain fertility in Arabidopsis.

Tan C, Liang M, Luo Q, Zhang T, Wang W, Li S Planta. 2023; 258(3):68.

PMID: 37598130 DOI: 10.1007/s00425-023-04219-8.


Mutation of DEFECTIVE EMBRYO SAC1 results in a low seed-setting rate in rice by regulating embryo sac development.

Hu X, Yu P, Zhang Y, Gao Z, Sun B, Wu W J Exp Bot. 2023; 74(5):1501-1516.

PMID: 36651501 PMC: 10010608. DOI: 10.1093/jxb/erac506.


Function of Nuclear Pore Complexes in Regulation of Plant Defense Signaling.

Wu X, Han J, Guo C Int J Mol Sci. 2022; 23(6).

PMID: 35328452 PMC: 8953349. DOI: 10.3390/ijms23063031.


Nucleocytoplasmic Communication in Healthy and Diseased Plant Tissues.

Ludke D, Rohmann P, Wiermer M Front Plant Sci. 2021; 12:719453.

PMID: 34394173 PMC: 8357054. DOI: 10.3389/fpls.2021.719453.


References
1.
Clough S, Bent A . Floral dip: a simplified method for Agrobacterium-mediated transformation of Arabidopsis thaliana. Plant J. 1999; 16(6):735-43. DOI: 10.1046/j.1365-313x.1998.00343.x. View

2.
Johnson-Brousseau S, McCormick S . A compendium of methods useful for characterizing Arabidopsis pollen mutants and gametophytically-expressed genes. Plant J. 2004; 39(5):761-75. DOI: 10.1111/j.1365-313X.2004.02147.x. View

3.
Zhang Y, Li X . A putative nucleoporin 96 Is required for both basal defense and constitutive resistance responses mediated by suppressor of npr1-1,constitutive 1. Plant Cell. 2005; 17(4):1306-16. PMC: 1088004. DOI: 10.1105/tpc.104.029926. View

4.
Barow M . Endopolyploidy in seed plants. Bioessays. 2006; 28(3):271-81. DOI: 10.1002/bies.20371. View

5.
Parry G, Ward S, Cernac A, Dharmasiri S, Estelle M . The Arabidopsis SUPPRESSOR OF AUXIN RESISTANCE proteins are nucleoporins with an important role in hormone signaling and development. Plant Cell. 2006; 18(7):1590-603. PMC: 1488926. DOI: 10.1105/tpc.106.041566. View