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昆虫分子生物学研究
(
网络版
), 2013
,
2
,
1-4
Kunchong Fenzi Shengwuxue Yanjiu (Online), 2013, Vol.2, 1-4
http://imbr.biopublisher.cn
Copyright © 2013 5
th
Publisher 1
小综述
Mini-Review
小综述:小菜蛾
(
Plutella xylostella
)
分子档案
Jeffrey W. Lee
Insectarium, Saunders Bioscience Institute at Fresno, CA, USA
通讯作者:
Jeffrey.w.lee@SBI.com
作者
昆虫分子生物学研究
, 2013
,
2
,
1
doi: 10.5376/imbr.cn.2013.02.0001
本文首次以英文发表在
Molecular Entomology, 2013, Vol.4, No.1, pp.1-5
上。现依据版权所有人授权的许可协议,采用
Creative Commons Attribution
License
协议对其进行授权,用中文再次发表与传播。只要对原作有恰当的引用
,
版权所有人允许并同意第三方无条件的使用与传播。如果读者对中
文含义理解有歧义,请以英文原文为准。
引用格式:
Lee J.W., 2013, A Mini-Review: Molecular Profiles of Diamondback Moth (Plutella xylostella), Molecular Entomology, Vol.4, No.1 1-5 (doi:
10.5376/me.2013.04.0001)
小菜蛾属于鳞翅目菜蛾科菜蛾属,学名为
Plutella xylostella
(L.)
英文名:
Diamondback moth
DBM
),是鳞翅目昆
虫中一个原始的类型。小菜蛾自身高度杂合,有
31
条染色体(
n=31
),基因组大小约为
343 Mb
,预测含有
18 071
个蛋白编
码蛋白,
781
个非编码
RNA
,基因组中有
33.97%
重复序列组成,小菜蛾拥有
1 412
个特有基因。小菜蛾基因组中存在丰富
SNP
、插入缺失、结构变异以及复合片段重复等
DNA
变异。小菜蛾大约在
124
万年以前与其它两个鳞翅目昆虫,家蚕(
B.
mori
)和
黑脈金斑蝶(
D. plexippus
)中分化出来。
DMB
适应了各种环境的挑战,这种对外界环境的适应与小菜蛾在幼虫阶
段偏好表达的基因,发现与气味感受、食物消化和解毒代谢相关的基因所构成的复杂基因网络密切相关。尤其是小菜蛾在长
期进化过程中形成生物解毒代谢途径,使得小菜蛾拥有对很多化学物具有解毒能力,从而使其成为一个臭名昭著的鳞翅目害
虫。
关键词
小菜蛾
;
基因组
;
分子变异
;
分子进化
;
分子适应
AMini-review: Molecular Profile of Diamondback Moth (
Plutella xylostella
)
Jeffrey W. Lee
Insectarium, Saunders Bioscience Institute at Fresno, CA, USA
Corresponding author: Jeffrey.w.lee@SBI.com
Authors
Abstract
Diamondback moth (DBM) belongs to Lepidoptera (Order), Plutellidae(Family), Plutella (Genus), its binomial name is
Plutella xylostella
(L.) , which is deemed to be a basal and primitive lepidopteran insect as well as a high heterozygous insect.
Diamondback moth has 31 chromosomes (n = 31) and its genome size is about 343Mb, containing 18,071 protein-coding genes and
781 non-coding RNAs, with 33.97% of the genome made up of repetitive sequence. Diamondback moth has 1412
P. xylostella
unique genes. There are abundant DNA variations in genome such as SNPs, InDels, structural variations and complex segmental
duplication patterns. Diamondback moth diverged about 124 million years ago from two other lepidopterans
B. mori
and
D.
plexippus
. DMB adapts to a variety of environmental challenges, The abilities of these adaptations are closely related to a set of
genes preferentially expressed at the larval stage that contribute to odorant chemoreception, food digestion and metabolic
detoxification, particularly, in the long-term evolutionary DBM is evolved a biological detoxification pathway, developing the ability
to detoxify many chemicals and
Bt
toxins, thus making it a notorious lepidopteran pests.
Keywords
Diamondback moth (DBM);
Plutella xylostella
(L.); Genome; Molecular variation; Molecular evolution; Molecular
adaptation
小 菜 蛾 属 于 鳞 翅 目
(Lepidoptera)
菜 蛾 科
(Plutellidae)
菜蛾属,学名为
Plutella xylostella
(L.)
小菜蛾因其雄性成虫的前翅边缘有一系列的黄色
波纹,当蛾子翅膀收叠起来时,这些图案叠加在一
起在背上形成三个黄色钻石图案而得名为
Diamondback moth (DBM) (Ankersmit et al. 1953)
收稿日期:
2013
2
05
接受日期:
2013
2
28
发表日期:
2013
3
28