A synthetic wheat with 56 chromosomes derived from Triticum turgidum and Aegilops tauschii

被引：4

作者：

Zhang, Lianquan ^{[1
,2
]}

Liu, Dengcai ^{[1
,2
]}

Lan, Xiujin ^{[1
,2
]}

Zheng, Youliang ^{[1
,2
]}

Yan, Zehong ^{[1
,2
]}

机构：

[1] Sichuan Agr Univ, Minist Educ, Key Lab Crop Genet Resources & Improvement, Yaan 625014, Peoples R China

[2] Sichuan Agr Univ, Triticeae Res Inst, Dujiangyan, Peoples R China

来源：

JOURNAL OF APPLIED GENETICS | 2008年 / 49卷 / 01期

关键词：

Aegilops tauschii; chromosome; octoploid wheat; Triticum turgidum; synthetic wheat;

D O I：

10.1007/BF03195247

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

By colchicine treatment of hybrids between Triticum turgidum and Aegilops tauschii (as seedlings), a fertile wheat plant (SHW-L2) carrying 56 chromosomes was artificially synthesized. At metaphase I of 50 pollen mother cells, the 56 chromosomes of the new wheat SHW-L2 showed a mean pairing configuration of 2.82 univalents, 6.18 rod bivalents, 19.39 ring bivalents, 0.5 trivalents, and 0.14 quadrivalents. Cytological analyses suggested that SHW-L2 had additional 7 pairs of chromosomes from the A and D genome besides the 42 chromosomes of common wheat. The special chromosome constitution of SHW-L2 may be derived from the chromosome doubling by the colchicine treatment of seedlings and then spontaneous doubling of gametes.

引用

页码：41 / 44

页数：4

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