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分子植物育种
(
网络版
), 2011
,
9
,
1579
-
1583
Fenzi Zhiwu Yuzhong (Online), 2011, Vol.9, 1579
-
1583
http://mpb.
5th
.sophiapublisher.com
1579
研究报告
A Letter
小麦中
TAXI-
XIP-
TLXI
三类木聚糖酶抑制剂基因检测
牛存秀
1
,
司红起
1
,
高雅
1
,
陈璨
1
,
王永玖
2
,
马传喜
1
1.
安徽农业大学农学院
,
合肥
, 230036
2.
安徽省怀远县龙亢农场
,
怀远
, 233428
通讯作者
: sihq2002@163.com;
作者
分子植物育种
, 2011
,
9
,
79
doi: 10.5376/mpb.cn.2011.09.0079
收稿日期:
2011
05
16
接受日期:
2011
06
15
发表日期:
2011
06
22
这是一篇采用
Creative Commons Attribution License
进行授权的开放取阅论文。只要对本原作有恰当的引用
,
版权所有人允许并同意第三方无条
件的使用与传播。
引用格式:
牛存秀等
, 2011,
小麦中
TAXI-
XIP-
TLXI
三类木聚糖酶抑制剂基因检测
,
分子植物育种
Vol.9 No.79 (doi: 10.5376/mpb.cn.2011.09.0079)
木聚糖酶抑制剂基因参与植物的抗病防御反应,在小麦抗病育种中具有一定的应用价值。为了了解木聚糖酶抑制
剂基因在不同小麦品种中的分布状况,本文选取来自全国各麦区的
260
份小麦品种,利用三对特异引物分别对
XIP-
TAXI-
TLXI
三类木聚糖酶抑制剂基因进行了分子检测,结果表明,在
260
份材料中,有
148
份材料含有
XIP-
基因
(
57.0%)
116
份材料含有
TAXI-
基因
(
44.6%)
161
份材料含有
TLXI
基因
(
61.9%)
60
份材料同时含有
XIP-
TAXI-
两类基因
(
23.1%)
88
份材料同时含有
XIP-
TLXI
两类基因
(
33.8%)
75
份材料同时含有
TAXI-
TLXI
两类基因
(28.8%)
37
份材料同时含
XIP-
TLXI
TAXI-
三类基因
(14.2%)
20
份材料三类基因都不含有
(
7.7%)
。聚合了三类
木聚糖酶抑制剂基因的种质资源可作为抗病育种的亲本。
关键词
小麦
;
木聚糖酶抑制剂基因
;
XIP-
;
TAXI-
;
TLXI
Molecular Identification of Xylanase Inhibitor Genes-
XIP-
TAXI-
TLXI
in
Common Wheat
Niu Cunxiu
1
, Si Hongqi
1
, Gao Ya
1
, Chen Can
1
, Wang Yongjiu
2
, Ma Chuanxi
1
1.Anhui Agricultural University, hefei, 230036, P.R. China
2.Longkang Farm of Huaiyuan County, Huaiyuan, 233428, P.R. China
Corresponding author, sihq2002@163.com;
Authors
Abstract
Endoxylanase inhibitor genes play an important role in plant disease-resistant defense reactions, and have some
application values in wheat disease-resistant breeding. In order to understand the distribution of three-type endoxylanase inhibitor
genes in different wheat varieties, in this paper three-type genes, XIP- ,TAXI
- and TLXI, were identified by using three specific
primers in 260 wheat cultivars from all over the country in China. The results showed that 148 of the 260 wheat cultivars contain
XIP- gene, accounting for 57.0%, 116 of the 260 wheat cultivars contain TAXI
- gene , accounting for 44.6%, and 161 of the 260
wheat cultivars contain TLXI, accounting for 61.9%. 60 of the 260 materials contain
XIP-
and
TAXI-
genes, accounting for
23.1%,
XIP-
and
TLXI
genes exist in 88 different wheat varieties which account for 33.8%,
TAXI-
and
TLXI
genes together exist
in 75 materials which account for 28.8%, 37 materials contain
XIP-
TLXI
and
TAXI-
genes, accounting for 14.2%, 20 materials
do not contain the three genes. In this paper we suggested that the wheat cultivars with three genes should be used as breeding
parents for disease resistant in wheat.
Keywords
Wheat (
Triticum aestivum
L.); endoxylanase inhibitors gene;
XIP-
;
TAXI-
;
TLXI
研究背景
早在
1997
年,
Debyser
等人研究阿拉伯木聚糖的
溶解及抑制时发现小麦粉的粗提取物中存在能抑
制木聚糖酶活性的蛋白组分
(Debyser et al., 1997)
并进一步分离纯化,定名为小麦木聚糖酶抑制剂
(
Triticum aestivum
xylanase inhibitor, TAXI)
(Debyser et al., 1999)
。此后
McLauchlan
Fierens
先后从小麦中又分离出两种结构不同的木聚糖酶
抑 制 剂
XIP (xylanase inhibitor protein)
TLXI
(thaumatin-like xylanase inhibitor) (McLauchlan et al.,
1999; Fierens et al., 2007)
。迄今为止,在谷物中只
发现这三类结构不同的木聚糖酶抑制剂,
TAXI