Biology Reference
In-Depth Information
Table 2.3
Genes and Promoters Cloned from Coconut
Gene
Role
Accession No.
Conclusion
Reference
LPAAT
Catalyzes conversion of
lysophosphatidic acid
(LPA) to phosphatidic
acid (PA)
U29657
1.325 kb size anticipated protein of 308 amino
acids; promoter of LPAAT gene (1.2 kb)
with Skn-1 motif, W box, AGGAA, and
TCCC motifs
[37] [46]
CDKA
Cellular control—studied
for the role in somatic
embryogenesis during
embryogenic callus
formation
GQ924086
882 bp long (294 amino acids) CnCDKA gene
similar to Picea expression steadily increased
during embryogenic competence
[53]
KNOX
Knotted homeobox
transcription factor induced
by giberellic acid (GA
3
)
studied here
CnKNOX1 (GU937114)
CnKNOX2 (GU937115) with
KNOX and ELK domains
CnKNOX1, only in meristematic tissues 1002 bp
long (333 amino acids) CnKNOX2 (54 bp
long 317 amino acids) in both meristematic
and nonmeristamtic
[54]
SERK
Somatic embryogenesis
receptor kinase
AY791293 with SPP domain,
leucine zipper domain and
5 LRR domains
2.24 kb long 1.89 kb ORF (629 amino
acids) resembled rice SERK and rice
benzothiadiazole-induced SERK
[55]
WRKY
Transcription factor with
WRKY domain; WRKY
families of
2, 6, 7, 16, and 19
(WRKY2—FJ956959 to 64;
WRKY6—FJ957104 to 09;
WRKY7—FJ957178 to
83; WRKY12—FJ957250-
01;WRKY16—FJ957319-21;
WRKY19—FJ957389 to
94;WRKY21—FJ957030
to 35)
Using a degenerate primer pair, WRKY gene
regions were cloned and sequenced from
6 coconut populations
[66]
MAPK
Chitosan-induced mitogen-
activated protein kinase
AJ555489-91 with TEY domain
Addition of chitosan activates a 46 kDa
MAPK-like protein
[67]
