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Synthetic hexaploid wheat and its utilization for wheat genetic improvement in China
Yang, Wuyun1; Liu, Dengcai2,5; Li, Jun1; Zhang, Lianquan2; Wei, Huiting1; Hu, Xiaorong1; Zheng, Youliang2; He, Zhouhu3,4; Zou, Yuchun1
2009-09-01
Source PublicationJOURNAL OF GENETICS AND GENOMICS
ISSN1673-8527
Volume36Issue:9Pages:539-546
SubtypeReview
AbstractSynthetic hexaploid wheat (Triticum turgidum x Aegilops tauschii) was created to explore for novel genes from T turgidum and Ae. tauschii that can be used for common wheat improvement. In the present paper, research advances on the utilization of synthetic hexaploid wheat for wheat genetic improvement in China are reviewed. Over 200 synthetic hexaploid wheat (SHW) accessions from the International Maize and Wheat Improvement Centre (CIMMYT) were introduced into China since 1995. Four cultivars derived from these, Chuanmai 38, Chuanmai 42, Chuanmai 43 and Chuanmai 47, have been released in China. Of these, Chuanmai 42, with large kernels and resistance to stripe rust, had the highest average yield (> 6 t/ha) among all cultivars over two years in Sichuan provincial yield trials, outyielding the commercial check cultivar Chuanmai 107 by 22.7%. Meanwhile, by either artificial chromosome doubling via colchicine treatment or spontaneous chromosome doubling via a union of unreduced gametes (2n) from T turgidum-Ae. tauschii hybrids, new SHW lines were produced in China. Mitotic-like meiosis might be the cytological mechanism of spontaneous chromosome doubling. SHW lines with genes for spontaneous chromosome doubling may be useful for producing new SHW-alien amphidiploids and double haploid in wheat genetic improvement.; Synthetic hexaploid wheat (Triticum turgidum x Aegilops tauschii) was created to explore for novel genes from T turgidum and Ae. tauschii that can be used for common wheat improvement. In the present paper, research advances on the utilization of synthetic hexaploid wheat for wheat genetic improvement in China are reviewed. Over 200 synthetic hexaploid wheat (SHW) accessions from the International Maize and Wheat Improvement Centre (CIMMYT) were introduced into China since 1995. Four cultivars derived from these, Chuanmai 38, Chuanmai 42, Chuanmai 43 and Chuanmai 47, have been released in China. Of these, Chuanmai 42, with large kernels and resistance to stripe rust, had the highest average yield (> 6 t/ha) among all cultivars over two years in Sichuan provincial yield trials, outyielding the commercial check cultivar Chuanmai 107 by 22.7%. Meanwhile, by either artificial chromosome doubling via colchicine treatment or spontaneous chromosome doubling via a union of unreduced gametes (2n) from T turgidum-Ae. tauschii hybrids, new SHW lines were produced in China. Mitotic-like meiosis might be the cytological mechanism of spontaneous chromosome doubling. SHW lines with genes for spontaneous chromosome doubling may be useful for producing new SHW-alien amphidiploids and double haploid in wheat genetic improvement.
KeywordAegilops Tauschii Synthetic Hexaploid Wheat Disease Resistance Genetic Diversity Wheat Breeding Unreduced Gametes
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordX T-TAUSCHII ; PREHARVEST SPROUTING TOLERANCE ; BACKCROSS QTL ANALYSIS ; BREAD-MAKING QUALITY ; AEGILOPS-TAUSCHII ; TRITICUM-TAUSCHII ; COMMON WHEAT ; EMMER WHEAT ; LEAF RUST ; RESISTANCE
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Genetics & Heredity
WOS SubjectBiochemistry & Molecular Biology ; Genetics & Heredity
WOS IDWOS:000270098600005
Citation statistics
Cited Times:70[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/1828
Collection中国科学院西北高原生物研究所
Affiliation1.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China
2.Sichuan Agr Univ, Triticeae Res Inst, Dujiangyan 611830, Peoples R China
3.Chinese Acad Agr Sci, Inst Crop Sci, Natl Wheat Improvement Ctr, Beijing 100081, Peoples R China
4.CAAS, CIMMYT, China Off, Beijing 100081, Peoples R China
5.Chinese Acad Sci, NW Plateau Inst Biol, Qinghai 810001, Peoples R China
Recommended Citation
GB/T 7714
Yang, Wuyun,Liu, Dengcai,Li, Jun,et al. Synthetic hexaploid wheat and its utilization for wheat genetic improvement in China[J]. JOURNAL OF GENETICS AND GENOMICS,2009,36(9):539-546.
APA Yang, Wuyun.,Liu, Dengcai.,Li, Jun.,Zhang, Lianquan.,Wei, Huiting.,...&Zou, Yuchun.(2009).Synthetic hexaploid wheat and its utilization for wheat genetic improvement in China.JOURNAL OF GENETICS AND GENOMICS,36(9),539-546.
MLA Yang, Wuyun,et al."Synthetic hexaploid wheat and its utilization for wheat genetic improvement in China".JOURNAL OF GENETICS AND GENOMICS 36.9(2009):539-546.
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