Yuliang Qiu , Sangang Xie , Wenbin Ren , Qian Wang , Jingzhen Yao

Institute of Cotton Research, Shanxi Agricultural University, Yuncheng, 044000, China
Author    Correspondence author
Triticeae Genomics and Genetics, 2022, Vol. 13, No. 1   doi: 10.5376/tgg.2022.13.0001
Received: 14 Apr., 2022    Accepted: 23 Apr., 2022    Published: 19 May, 2022

This article was first published in Molecular Plant Breeding in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Qiu Y.L., Xie S.G., Ren W.B., Wang Q., and Yao J.Z., 2022, The restoring and maintaining characteristic among K-type and F-type wheat male sterile lines, Triticeae Genomics and Genetics, 13(1): 1-8 (doi: 10.5376/tgg.2022.13.0001)

In order to study the pollen abortive characteristics of male sterile lines of K-type and F-type wheat and to screen their strong restorers lines and maintainers, the I₂-KI staining method was used to observe the pollens types of sterile lines in flowering period, and 583 quality wheat varieties (lines) were hybridized with sterile lines to investigate the self-seed set ratio on F₁ of combinations. The results show that:(1)the pollen sterility rate of K-type and F-type male sterile lines were as high as 96.97% and 97.73%, respectively. The main types of pollen abortion were stained aborted tape and typical aborted tape. (2) the self-seed set ratio of K-type and F-type sterile lines (domestic) were 4.61% and 1.98%, respectively. (3) 34 self-seed set ratio of F₁ (international) were more than 100% and 11 below 20%. (4) ‘Liangxing805’, AQ001, ‘Lin7287’, ‘Jimai22’ were excellent restorer lines to K-type sterile line. ‘Bao8696’, ‘Nongda3291’, ‘Ke1201’, ‘Ji8906069’ could be used as good maintainers for K-type sterile line. ‘Bao8696’, ‘15Zhan24’, ‘Luomai23’, ‘Linyuan801’ were excellent restorer lines to F-type sterile line. ‘15Zhan11’, ‘Wenhang6’, ‘Linyu5’, ‘Fengyou8’ could be used as good maintainers for F-type sterile line. The results showed that both K-type and F-type sterile lines were completely aborted and stable, and they were easy to find good maintainer lines and restorer lines, and the latter had stronger recovery capability.

Hybrid wheat; Male sterility line; Pollen vitality; Strong dominant combination; Maintainer line