NDLI: Genome-Wide Analysis of the PIN Auxin Efflux Carrier Gene Family in Coffee

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Genome-Wide Analysis of the PIN Auxin Efflux Carrier Gene Family in Coffee

Content Provider	MDPI
Author	Huang, Xing Bai, Xuehui Guo, Tieying Xie, Zhouli Laimer, Margit Du, Dengxiang Gbokie, Jr. Thomas Zhang, Zhirun He, Chunping Lu, Ying Wu, Weihuai Yi, Kexian
Copyright Year	2020
Description	Coffee is one of the most popular beverages around the world, which is mainly produced from the allopolyploid Coffea arabica. The genomes of C. arabica and its two ancestors C. canephora and C. eugenioides have been released due to the development of next generation sequencing. However, few studies on C. arabica are related to the PIN-FORMED (PIN) auxin efflux transporter despite its importance in auxin-mediated plant growth and development. In the present study, we conducted a genome-wide analysis of the PIN gene family in the three coffee species. Totals of 17, 9 and 10 of the PIN members were characterized in C. Arabica, C. canephora and C. eugenioides, respectively. Phylogenetic analysis revealed gene loss of PIN1 and PIN2 homologs in C. arabica, as well as gene duplication of PIN5 homologs during the fractionation process after tetraploidy. Furthermore, we conducted expression analysis of PIN genes in C. arabica by in silico and qRT-PCR. The results revealed the existence of gene expression dominance in allopolyploid coffee and illustrated several PIN candidates in regulating auxin transport and homeostasis under leaf rust fungus inoculation and the tissue-specific expression pattern of C. arabica. Together, this study provides the basis and guideline for future functional characterization of the PIN gene family.
Starting Page	1061
e-ISSN	22237747
DOI	10.3390/plants9091061
Journal	Plants
Issue Number	9
Volume Number	9
Language	English
Publisher	MDPI
Publisher Date	2020-08-19
Access Restriction	Open
Subject Keyword	Plants Plant Sciences Pin Auxin Efflux Carrier Phylogeny Expression Coffea Arabica Coffea Canephora Coffea Eugenioides
Content Type	Text
Resource Type	Article

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