

FOLLOWUS
1.State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
2.Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Haikou 570228, China
3.Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou 570228, China
Zhenjie CAO, E-mail: 1057319886@qq.com
Yongcan ZHOU, E-mail: zychnu@163.com
Received:21 June 2020,
Accepted:18 September 2020,
Online First:13 November 2020,
Published:2021-09
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Xiaojuan CHEN, Yun SUN, Panpan ZHANG, et al. Screening of stable internal reference genes by quantitative real-time PCR in humpback grouper
Xiaojuan CHEN, Yun SUN, Panpan ZHANG, et al. Screening of stable internal reference genes by quantitative real-time PCR in humpback grouper
Humpback grouper
Cromileptes altivelis
is one commercial fish with considerable economic value. To determine the expression stabilities of six commonly used internal reference genes in
C
.
altivelis
challenged by
Vibrio harveyi
and viral nervous necrosis virus (VNNV) through quantitative real-time PCR (qRT-PCR)
the expression levels of selected genes in five immune organs stimulated with pathogenic infection were carefully evaluated using algorithms of geNorm
NormFinder
and BestKeeper. The results show that the expression stabilities of the six candidate internal reference genes were different. Under normal physiological conditions
RPL13
were identified as the most stably expressed genes among five different immune organs (liver
spleen
kidney
intestine
and gill). After
V
.
harveyi
stimulation
RPL13
RPL13
EF1A
RPL13
and
EF1A
were identified by geNorm
NormFinder
and BestKeeper as the most stable genes in liver
spleen
kidney
intestine
and gill
respectively. Combining these three algorithms suggested that under stimulation of
VNNV
RPL13
EF1A
Actin
RPL13
and
Actin
were as the most stable genes in liver
spleen
kidney
intestine
and gill
respectively. These results suggest that specific experiment conditions and tissue types shall be considered when selecting the reference genes in qRT-PCR analysis. This study provided a solid foundation for future studies on gene expression of
C
.
altivelis
under different conditions.
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