Abstract:
To demonstrate the biological roles of
FER-like (
FERL) gene in
Nicotiana tabacum,
NtFERL was cloned with the homologous cloning strategy and its sequence was analyzed. The function of
NtFERL was characterized by virus-induced gene silence (VIGS) in
N.
benthamiana. The results showed that
NtFERL located in chromosome 7 was found to lack intron. The CDS sequence of
NtFERL was 2 670 bp in length and encoded 889 amino acid residues. Sequence alignment showed that at nucleotide acid and amino acid levels,
NtFERL shared 68.8% and 71.1% identities with
FERONIA in
Arabidopsis thaliana, respectively.
NtFERL-silenced tobacco plants exhibited light yellow leaves. Except for neoxanthin, the contents of chlorophyll a, chlorophyll b,
β-carotene and xanthophyll were significantly reduced, which suggested that
NtFERL might positively regulate the plastid pigment contents in tobacco.