DISOMIC THINOPYRUM-INTERMEDIUM ADDITION LINES IN WHEAT WITH BARLEY YELLOW DWARF VIRUS-RESISTANCE AND WITH RUST RESISTANCES
文献类型: 外文期刊
第一作者: LARKIN, PJ
作者: LARKIN, PJ;BANKS, PM;LAGUDAH, ES;APPELS, R;XIAO, C;XIN, ZY;OHM, HW;MCINTOSH, RA
作者机构:
关键词: AGROPYRON;INTERMEDIATE WHEATGRASS;LEAF RUST;STEM RUST;STRIPE RUST;LUTEOVIRUS
期刊名称:GENOME ( 影响因子:2.166; 五年影响因子:2.474 )
ISSN: 0831-2796
年卷期: 1995 年 38 卷 2 期
页码:
收录情况: SCI
摘要: Zhong 5 is a partial amphiploid (2n = 56) between Triticum aestivum (2n = 42) and Thinopyrum intermedium (2n = 42) carrying all the chromosomes of wheat and seven pairs of chromosomes from Th. intermedium. Following further backcrossing to wheat, six independent stable 2n = 44 lines were obtained representing 4 disomic chromosome addition lines. One chromosome confers barley yellow dwarf virus (BYDV) resistance, whereas two other chromosomes carry leaf and stem rust resistance; one of the latter also confers stripe rust resistance. Using RFLP and isozyme markers we have shown that the extra chromosome in the Zhong 5-derived BYDV resistant disomic addition lines (Z1, Z2, or Z6) belongs to the homoeologous group 2. It therefore carries a different locus to the BYDV resistant group 7 addition, L1, described previously. The leaf, stem, and stripe rust resistant line (Z4) carries an added group 7 chromosome. The line Z3 has neither BYDV nor rust resistance, is not a group 2 or group 7 addition, and is probably a group 1 addition. The line Z5 is leaf and stem rust resistant, is not stripe rust resistant, and its homoeology remains unknown.
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