Aspartate Decarboxylase is Required for a Normal Pupa Pigmentation Pattern in the Silkworm, Bombyx mori.

Aspartate Decarboxylase is Required for a Normal Pupa Pigmentation Pattern in the Silkworm, Bombyx mori.
复制标题

家蚕正常蛹色素沉着模式需要天冬氨酸脱羧酶

DOI:
10.1038/srep10885
复制
发表时间:
2015-06-16
期刊:
影响因子:
4.6
通讯作者:
Lu C
Lu C
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Dai F;Qiao L;Cao C;Liu X;Tong X;He S;Hu H;Zhang L;Wu S;Tan D;Xiang Z;Lu C

文献摘要

参考文献

被引文献

相似文献

鳞翅目昆虫在不同发育阶段的色素分布有较大差异。到目前为止,黑色素代谢途径中的关键基因对幼虫和成虫体色的影响是不同的,但对蚕蛹色素沉着的影响尚不清楚。在家蚕中,黑蛹(BP)突变体只在蚕蛹阶段特异地黑化。通过定位克隆,我们发现天冬氨酸脱羧酶基因(BmADC)的一个突变是导致BP突变的原因。在BP突变体中,在BmADC转录起始点的上游约2.2kb处检测到一个长度为493bp的正弦转座子。这一插入导致BP突变体中BmADC转录水平的急剧下降,导致β-丙氨酸和N-β-丙氨酰多巴胺的缺乏,但多巴胺的积累。在BP突变体中注入β-丙氨酸后,家蚕的颜色模式恢复了野生型家蚕的颜色。此外,还获得了由于野生型菌株中BmADC基因敲除而产生的黑化蛹。这些发现表明,BmADC在黑色素代谢和蚕蛹阶段的色素沉积模式中起着至关重要的作用。最后,本研究有助于更好地了解鳞翅目昆虫的蚕蛹色素沉着模式。
The pigmentation pattern of Lepidoptera varies greatly in different development stages. To date, the effects of key genes in the melanin metabolism pathway on larval and adult body color are distinct, yet the effects on pupal pigmentation remains unclear. In the silkworm, Bombyx mori, the black pupa (bp) mutant is only specifically melanized at the pupal stage. Using positional cloning, we found that a mutation in the Aspartate decarboxylase gene (BmADC) is causative in the bp mutant. In the bp mutant, a SINE-like transposon with a length of 493 bp was detected ~2.2 kb upstream of the transcriptional start site of BmADC. This insertion causes a sharp reduction in BmADC transcript levels in bp mutants, leading to deficiency of β-alanine and N-β-alanyl dopamine (NBAD), but accumulation of dopamine. Following injection of β-alanine into bp mutants, the color pattern was reverted that of the wild-type silkworms. Additionally, melanic pupae resulting from knock-down of BmADC in the wild-type strain were obtained. These findings show that BmADC plays a crucial role in melanin metabolism and in the pigmentation pattern of the silkworm pupal stage. Finally, this study contributes to a better understanding of pupa pigmentation patterns in Lepidoptera.
DOI: 10.1016/0020-1790(84)90063-5
发表时间: 1984-01-01
期刊: INSECT BIOCHEMISTRY
影响因子: --
作者:
KRAMER, KJ;MORGAN, TD;LOOKHART, GL
通讯作者: LOOKHART, GL
DOI: 10.1074/jbc.m109.035741
发表时间: 2010-02-19
影响因子: 4.8
作者:
Ito, Katsuhiko;Katsuma, Susumu;Shimada, Toru
通讯作者: Shimada, Toru
DOI: 10.1093/nar/gkp801
发表时间: 2010-01
影响因子: 14.9
作者:
Duan J;Li R;Cheng D;Fan W;Zha X;Cheng T;Wu Y;Wang J;Mita K;Xiang Z;Xia Q
通讯作者: Xia Q
DOI: 10.1111/j.0893-5785.2000.130811.x
发表时间: 2000-01-01
期刊: PIGMENT CELL RESEARCH
影响因子: --
作者:
Koch, PB;Behnecke, B;Ffrench-Constant, RH
通讯作者: Ffrench-Constant, RH
DOI: 10.1007/s11103-005-4844-9
发表时间: 2006-03-01
影响因子: 5.1
作者:
Fouad, WM;Rathinasabapathi, B
通讯作者: Rathinasabapathi, B