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Genome-wide investigation and expression analyses of the pentatricopeptide repeat protein gene family in foxtail millet

Overview of attention for article published in BMC Genomics, October 2016
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Title
Genome-wide investigation and expression analyses of the pentatricopeptide repeat protein gene family in foxtail millet
Published in
BMC Genomics, October 2016
DOI 10.1186/s12864-016-3184-2
Pubmed ID
Authors

Jia-Ming Liu, Zhao-Shi Xu, Pan-Pan Lu, Wei-Wei Li, Ming Chen, Chang-Hong Guo, You-Zhi Ma

Abstract

Pentatricopeptide repeat (PPR) proteins are encoded by a large gene family of approximately 450 members in Arabidopsis and 477 in rice, which characterized by tandem repetitions of a degenerate 35 amino acid characteristic sequence motifs. A large majority of the PPR genes in the higher plants are localized in organelles. Their functions remain as yet largely unknown. The majority of characterized PPR proteins have been found to function in modulating the expression plastid and mitochondrial genes in plants. Here, a genome-wide identification and comparison of the PPR genes from 5 organisms was performed, including the moss Physcomitrella patens, the lycophyte Selaginella moellendorffii, the eudicot Arabidopsis, and the monocots rice and foxtail millet. It appears that the expansion of this gene family prior to the divergence of the euphyllophytes and the lycophytes in land plants. The duplication and divergence rates of the foxtail millet PPR genes (SiPPRs) showed that the expansion period of this gene family around 400 Mya, and indicated that genome segmental duplication was very likely the primary mechanism underlying the expansion of the PPR gene family in vascular plants. An analysis of a complete set of SiPPR genes/proteins that included classification, chromosomal location, orthologous relationships, duplication analysis, and auxiliary motifs is presented. Expression analysis of the SiPPR genes under stress conditions revealed that the expression of 24 SiPPR genes was responsive to abiotic stress. Subcellular localization analysis of 11 PPR proteins indicated that 5 proteins were localized to chloroplasts, that 4 were localized to mitochondria, and that 2 were localized to the cytoplasm. Our results contribute to a more comprehensive understanding the roles of PPR proteins and will be useful in the prioritization of particular PPR proteins for subsequent functional validation studies in foxtail millet.

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Mendeley readers

The data shown below were compiled from readership statistics for 25 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 25 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 24%
Other 2 8%
Researcher 2 8%
Student > Master 2 8%
Professor 1 4%
Other 3 12%
Unknown 9 36%
Readers by discipline Count As %
Agricultural and Biological Sciences 11 44%
Biochemistry, Genetics and Molecular Biology 3 12%
Unspecified 1 4%
Engineering 1 4%
Unknown 9 36%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 September 2017.
All research outputs
#18,569,430
of 22,999,744 outputs
Outputs from BMC Genomics
#8,224
of 10,692 outputs
Outputs of similar age
#237,732
of 314,309 outputs
Outputs of similar age from BMC Genomics
#149
of 223 outputs
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