Molecular markers of Ph1 gene in Chinese spring and development of winter wheat new line harboring ph1b gene
文献类型: 外文期刊
第一作者: Wang, XW
作者: Wang, XW;Lia, JR;Chen, LH;Liu, GT
作者机构:
关键词: common wheat;Chinese Spring;ph1b mutant;sequence characterized amplified region;(SCAR) marker;marker-assistant selection
期刊名称:ACTA BOTANICA SINICA ( 影响因子:0.599; )
ISSN: 0577-7496
年卷期: 2000 年 42 卷 3 期
页码:
收录情况: SCI
摘要: The genomic DNA of common wheat (Triticum aestivum L.) "Chinese Spring" (CS) and its ph1b mutant were analyzed by using 19 sequence tagged site PCR (STS-PCR) primers, which derived from RFLP probes from barley ( Hordeum vulgare L.) chromosome 5H. One marker was identified on wheat chromosome 5BL, which is 5.7 cM (centiMorgan) proximal to Ph1 gene, using the CS homoeologous group 5 nullisomic-tetrasomic, ditelosomic 5BL line and an F-2 population from CS x ph1b mutant. This linked PCR marker was converted into a more specific sequence characterized amplified region (SCAR) marker. To obtain a new winter wheat line containing phlb gene, the authors used a nullisomic 5B line of "Abbodanza" as a bridge parent and crossed respectively with the CS ph1b mutant (donor) and a winter wheat variety, "Jing 411" (recipient). The meiotic chromosome pairing was checked in the progeny of each cross, as well as using the marker-assistant selection of the SCAR marker identified for phlb gene.,After three inter-crossing and one selfing, a relatively stable ph1b substitution line of winter wheat with "Jing 411" background way obtained.
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