Characterization, identification and evaluation of a novel wheat- Agropyron cristatum (L.) Gaertn. disomic addition line
- PDF / 1,502,695 Bytes
- 11 Pages / 547.087 x 737.008 pts Page_size
- 53 Downloads / 185 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
RESEARCH ARTICLE
Characterization, identification and evaluation of a novel wheat-Agropyron cristatum (L.) Gaertn. disomic addition line II-30-5 Qingfeng Li . Yuqing Lu . Cuili Pan . Zhangjun Wang . Fenglou Liu . Jinpeng Zhang . Xinming Yang . Xiuquan Li . Weihua Liu . Lihui Li
Received: 5 February 2020 / Accepted: 30 June 2020 Ó Springer Nature B.V. 2020
Abstract Agropyron cristatum (L.) Gaertn. (A. cristatum), which is an important wild relative of wheat (Triticum aestivum L.), exhibits multiple agronomic traits that are valuable for the genetic improvement of wheat. II-30-5 is derived from the BC3F1 progeny between wheat cv. Fukuhokomugi (Fukuho) and A. cristatum (2n = 4x = 28, PPPP). In this study, II-30-5 was proven to be a novel wheat-A. cristatum disomic 6P addition line by cytogenetics and A. cristatum expressed sequence tag-sequence-tagged site (EST-STS) markers. II-30-5 possessed several
elite agronomic traits, such as good plant type, erect leaf position, short flag leaf, high thousand-grain weight, and high resistance to powdery mildew and leaf rust. Chromosomal rearrangements led to multiple addition lines in the same group of homologous group. Evaluation of the agronomic traits of different 6P addition lines showed that different 6P addition lines contain specific traits. In the same homologous group, the production of multiple addition lines increases the types of genetic variation for wheat improvement. Keywords Agropyron cristatum Wheat Addition line Molecular cytogenetics Desirable genes
Qingfeng Li and Yuqing Lu contributed equally to this work.
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10722-020-00975-8) contains supplementary material, which is available to authorized users. Q. Li (&) C. Pan Z. Wang F. Liu School of Agriculture, Ningxia University, Yinchuan 750021, Ningxia, China e-mail: [email protected] Q. Li Z. Wang F. Liu Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China Y. Lu J. Zhang X. Yang X. Li W. Liu L. Li (&) National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China e-mail: [email protected]
Introduction Wild relatives of wheat include a large number of valuable genes for the genetic improvement of wheat, hybridizations between common wheat and its wild relatives are a prerequisite to utilize alien genes. Many wheat relatives have successfully hybridized with wheat and produced plentiful wheat-alien addition lines, particularly disomic addition lines with favorable agronomic traits. Wheat-alien disomic addition lines are the important primary basic materials to study the genetic behavior of alien chromosomes, determine the homologous relationship between wheat and alien chromosome, and produce substitution, translocation and introgression lines with superior agronomic traits.
123
G
Data Loading...
