Common wheat （Triticum aestivum L.） is one of the most important crops, and intra-specific wheat hybrids have obvious heterosis in yield and protein quality. Therefore, utilization of hybrid wheat varieties offers a...Common wheat （Triticum aestivum L.） is one of the most important crops, and intra-specific wheat hybrids have obvious heterosis in yield and protein quality. Therefore, utilization of hybrid wheat varieties offers an effective way to increase yield and nutrition. Cytoplasmic male sterility （CMS） systems are a useful genetic tool for hybrid crop breeding, and are ideal models for studying the genetic interaction and cooperative function of mitochondrial and nuclear genomes in plants （Schnable and Wise, 1998; Hanson and Bentolila, 2004）.展开更多
Talgu Genlc Male Sterile Wheat （TGMSW; Trltlcum aestlvum L.）, a dominant genic male sterile germplasm, is of considerable value in the genetic Improvement of wheat because of Its stable Inherence, complete male abor...Talgu Genlc Male Sterile Wheat （TGMSW; Trltlcum aestlvum L.）, a dominant genic male sterile germplasm, is of considerable value in the genetic Improvement of wheat because of Its stable Inherence, complete male abortion, and high cross-fertilization rate. To Identify specially transcribed genes In sterile anther, a suppression subtractlve hybridization （aSH） library was constructed with sterile anther as the tester and fertile anther as the driver. A total of 2 304 SSH Inserts amplified by polymerase chain reaction were arrayed using robotic printing. The cDNA arrays were hybridized with 32P-labeled probes prepared from the RNA of forward- and reverse-subtracted anthers. Ninety-six clones were scored as upregulated in sterile anthers compared with the corresponding fertile anthers and some clones were selected for sequencing and analysis In GenBank. Based on their putative functions, 87 non-redundant clones were classified Into the following groups： （i） eight genes Involved In metabolic processes; （11） four material transportation genes; （iii） three signal transductlon-assoclated genes; （iv） four stress response and senescence-associated protein genes; （v） seven other functional protein genes; （vi） five genes with no known function; and （vii） another 56 genes with no match to the databases. To test the hybridization efficiency, eight genes were selected and analyzed by Northern blot. The results of the present study provide a comprehensive overview of the genes and gene products Involved In anther abortion In TGMSW.展开更多
基金supported by the National Natural Science Foundation of China(No.30971844)the Fundamental Research Funds of Northwest A & F University(No. QN2011003)+1 种基金China Postdoctoral Science Foundation to Wang Junwei(No.20070410835)the Tang Zhong-Ying Breeding Funding Project of Northwest A & F University
文摘Common wheat （Triticum aestivum L.） is one of the most important crops, and intra-specific wheat hybrids have obvious heterosis in yield and protein quality. Therefore, utilization of hybrid wheat varieties offers an effective way to increase yield and nutrition. Cytoplasmic male sterility （CMS） systems are a useful genetic tool for hybrid crop breeding, and are ideal models for studying the genetic interaction and cooperative function of mitochondrial and nuclear genomes in plants （Schnable and Wise, 1998; Hanson and Bentolila, 2004）.
文摘Talgu Genlc Male Sterile Wheat （TGMSW; Trltlcum aestlvum L.）, a dominant genic male sterile germplasm, is of considerable value in the genetic Improvement of wheat because of Its stable Inherence, complete male abortion, and high cross-fertilization rate. To Identify specially transcribed genes In sterile anther, a suppression subtractlve hybridization （aSH） library was constructed with sterile anther as the tester and fertile anther as the driver. A total of 2 304 SSH Inserts amplified by polymerase chain reaction were arrayed using robotic printing. The cDNA arrays were hybridized with 32P-labeled probes prepared from the RNA of forward- and reverse-subtracted anthers. Ninety-six clones were scored as upregulated in sterile anthers compared with the corresponding fertile anthers and some clones were selected for sequencing and analysis In GenBank. Based on their putative functions, 87 non-redundant clones were classified Into the following groups： （i） eight genes Involved In metabolic processes; （11） four material transportation genes; （iii） three signal transductlon-assoclated genes; （iv） four stress response and senescence-associated protein genes; （v） seven other functional protein genes; （vi） five genes with no known function; and （vii） another 56 genes with no match to the databases. To test the hybridization efficiency, eight genes were selected and analyzed by Northern blot. The results of the present study provide a comprehensive overview of the genes and gene products Involved In anther abortion In TGMSW.
