TY - JOUR
AU1 - Yao, Hongni
AU2 - Xie, Quan
AU3 - Xue, Shulin
AU4 - Luo, Jing
AU5 - Lu, Jikang
AU6 - Kong, Zhongxin
AU7 - Wang, Yongpan
AU8 - Zhai, Wenling
AU9 - Lu, Nan
AU1 - Wei, Rong
AU1 - Yang, Yang
AU1 - Han, Yuzhou
AU1 - Zhang, Yong
AU1 - Jia, Haiyan
AU1 - Ma, Zhengqiang
AB - Key message A major QTL QSpl.nau-7D, named HL2, was validated for its ee ff cts on head length and kernel number per spike using NIL, and mapped to a 0.2 cM interval using recombinants. Abstract Improvement in wheat inflorescence traits such as spike or head length and spikelet number provides an important avenue to increase grain yield potential. In a previous study, QSpl.nau-7D, the major QTL for head length on chromosome 7D, was identified in the recombinant inbred lines derived from Nanda2419 and Wangshuibai. To validate and precisely map this QTL, the Wangshuibai allele was transferred to elite cultivar Yangmai15 through marker-assisted selection. Com- pared with the recurrent parent, the resultant near-isogenic line (NIL) yielded not only 28% longer spikes on the average but also more spikelets and kernels per spike. Moreover, the NIL had a lower spikelet density and did not show significant kernel weight change. In the F population derived from the NIL, QSpl.nau-7D acted like a single semi-dominant gene controlling head length and was therefore designated as Head Length 2 (HL2). With this population, a high-density genetic map was constructed mainly using newly developed markers, and 100 homozygous recombinants including 17 genotypes were obtained. Field experiments showed 
TI - HL2 on chromosome 7D of wheat (Triticum aestivum L.) regulates both head length and spikelet number
JF - TAG Theoretical and Applied Genetics
DO - 10.1007/s00122-019-03315-2
DA - 2019-02-27
UR - https://www.deepdyve.com/lp/springer-journals/hl2-on-chromosome-7d-of-wheat-triticum-aestivum-l-regulates-both-head-J2xOsNv360
SP - 1789
EP - 1797
VL - 132
IS - 6
DP - DeepDyve
ER -