Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (6): 34-41. doi: 10.7668/hbnxb.20193130

Special Issue: Cotton Biotechnology

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Cloning and Expression Analysis of a Cotton Pigment Gland Formation Related Gene GhERF105-like

ZHANG Xi1, QIAN Yuyuan1, WANG Guang'en1, LIU Yi1, QUAN Yuewei2, CUI Shufang1, MI Huanfang2, LI Junlan1,   

  1. 1 Institute of Cotton,Hebei Academy of Agriculture and Forestry Sciences,Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area,Ministry of Agriculture,National Cotton Improvement Center Hebei Branch,Shijiazhuang 050051,China
    2 Handan Academy of Agricultural Sciences,Handan 056001,China
  • Received:2022-08-18 Published:2022-12-28

Abstract:

In order to explore the function of GhERF105-like in the development of pigment glands or gossyol metabolism of cotton,the GhERF105-like gene of Zhongmiansuo 12 was cloned by RT-PCR,and the bioinformatics analysis and expression patterns were analyzed.The results showed that the coding region of GhERF105-like was 711 bp,encoding 236 amino acids.The molecular weight of GhERF105-like was 26.3 ku,and the theoretical pI was 7.72.The predicted secondary structure of GhERF105-like was 22.88% α-helix,13.14% extended strand,3.81% β-turn and 60.17% random coil.GhERF105-like had an AP2 domain at 91—155 aa.Two threonine,one tyrosine and one serine phosphorylation sites were predicted to be located in the AP2 domain.Phylogenetic analysis showed that motifs of GhERF105-like and its homologous proteins were highly conserved in different species.GhERF105-like motifs were consistent with homologous proteins in Gossypium hirsutum,G.mustelinum,G.darwinii,G.raimondii and G.barbadense.The expression of GhERF105-like in each tissue of glanded cotton Zhongmiansuo 12 was significantly or extremely significantly higher than that of dominant glandless Zhongmiansuo 12.The expression levels of GhERF105-like in leaves of different glanded cotton varieties/lines were different,and were all significantly higher than the expressions of dominant or recessive glandless cotton varieties/lines.GhERF105-like was significantly up-regulated by ABA and BR,but significantly or extremely significantly down-regulated by MeJA,Eth,NaCl and PEG treatment.In conclusion,GhERF105-like is closely related to the development of pigment glands in cotton,and may regulate gland development or gossypol metabolism through ABA,BR,Eth and JA pathways.

Key words: Cotton, AP2/ERF transcriptional factor, Sequence analysis, Expression analysis

Cite this article

ZHANG Xi, QIAN Yuyuan, WANG Guang'en, LIU Yi, QUAN Yuewei, CUI Shufang, MI Huanfang, LI Junlan. Cloning and Expression Analysis of a Cotton Pigment Gland Formation Related Gene GhERF105-like[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(6): 34-41. doi: 10.7668/hbnxb.20193130.

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