TY  - JA
AU  - Xiuling Tian
AU  - Weie Wen
AU  - Li Xie
AU  - Luping Fu
AU  - Dengan Xu
AU  - Chao Fu
AU  - Desen Wang
AU  - Xinmin Chen
AU  - Xianchun Xia
AU  - Quanjia Chen
AU  - He Zhonghu
AU  - Shuanghe Cao
TI  - Molecular mapping of reduced plant height gene Rht24 in bread wheat
PY  - 2017///
CY  - Switzerland : 
PB  - Frontiers, 
KW  - Wheat
KW  - AGROVOC
KW  - Genetic structures
KW  - Genotypes
N1  - Peer review; Open Access; WC
N2  - Height is an important trait related to plant architecture and yield potential in bread wheat (Triticum aestivum L.). We previously identified a major quantitative trait locus QPH.caas-6A flanked by simple sequence repeat markers Xbarc103 and Xwmc256 that reduced height by 8.0-10.4%. Here QPH.caas-6A, designated as Rht24, was confirmed using recombinant inbred lines (RILs) derived from a Jingdong 8/Aikang 58 cross. The target sequences of Xbarc103 and Xwmc256 were used as queries to BLAST against International Wheat Genome Sequence Consortium database and hit a super scaffold of approximately 208 Mb. Based on gene annotation of the scaffold, three gene-specific markers were developed to genotype the RILs, and Rht24 was narrowed to a 1.85 cM interval between TaAP2 and TaFAR. In addition, three single nucleotide polymorphism (SNP) markers linked to Rht24 were identified from SNP chip-based screening in combination with bulked segregant analysis. The allelic efficacy of Rht24 was validated in 242 elite wheat varieties using TaAP2 and TaFAR markers. These showed a significant association between genotypes and plant height. Rht24 reduced plant height by an average of 6.0-7.9 cm across environments and were significantly associated with an increased TGW of 2.0-3.4 g. The findings indicate that Rht24 is a common dwarfing gene in wheat breeding, and TaAP2 and TaFAR can be used for marker-assisted selection
UR  - https://hdl.handle.net/10883/19124
DO  - https://doi.org/10.3389/fpls.2017.01379
T2  - Frontiers in Plant Science
ER  -