A high-density genetic linkage map of Aegilops tauschii, the D-genome progenitor of bread wheat

被引：65

作者：

Boyko, EV

Gill, KS

Mickelson-Young, L

Nasuda, S

Raupp, WJ

Ziegle, JN

Singh, S

Hassawi, DS

Fritz, AK

Namuth, D

Lapitan, NLV

Gill, BS ^{[1
]}

机构：

[1] Kansas State Univ, Wheat Genet Resource Ctr, Manhattan, KS 66506 USA

[2] Kansas State Univ, Dept Plant Pathol, Manhattan, KS 66506 USA

[3] Univ Nebraska, Dept Agron, Lincoln, NE 68583 USA

[4] Kyoto Univ, Lab Plant Genet, Grad Sch Agr, Kyoto 60601, Japan

[5] Perkin Elmer Corp, Appl Biosyst Div, Foster City, CA 94404 USA

[6] Punjab Agr Univ, Ctr Biotechnol, Ludhiana 141004, Punjab, India

[7] Al Balga Appl Univ, Fac Agr Technol, Al Salt 19117, Jordan

[8] Texas A&M Univ, Dept Soil & Crop Sci, College Stn, TX 77843 USA

[9] Texas A&M Univ, So Crop Improvement Facil, College Stn, TX 77843 USA

[10] Colorado State Univ, Dept Soil & Crop Sci, Ft Collins, CO 80523 USA

来源：

THEORETICAL AND APPLIED GENETICS | 1999年 / 99卷 / 1-2期

关键词：

Aegilops tauschii; Triticum aestivum; genetic mapping; molecular markers; agronomically important genes;

D O I：

10.1007/s001220051204

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Aegilops tauschii is the diploid D-genome progenitor of bread wheat (Triticum aestivum L. em Thell, 2n = 6x = 42, AABBDD). A genetic linkage map of the Ae. tauschii genome was constructed, composed of 546 loci. One hundred and thirty two loci (24%) gave distorted segregation ratios. Sixty nine probes (13%) detected multiple copies in the genome. One hundred and twenty three of the 157 markers shared between the Ae. tauschii genetic and T. aestivum physical maps were colinear. The discrepancy in the order of five markers on the Ae. tauschii 3DS genetic map versus the T. aestivum 3D physical map indicated a possible inversion. Further work is needed to verify the discrepancies in the order of markers on the 4D, 5D and 7D Ae. tauschii genetic maps versus the physical and genetic maps of T. aestivum. Using common markers, 164 agronomically important genes were assigned to specific regions on Ae. tauschii linkage, and T. aestivum physical, maps. This information may be useful for map-based cloning and marker-assisted plant breeding.

引用

页码：16 / 26

页数：11

共 33 条

[1] Genetic mapping of QTL controlling tissue-culture response on chromosome 2B of wheat (Triticum aestivum L.) in relation to major genes and RFLP markers [J].