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[an error occurred while processing this directive]Exceptionally high genetic variance of the doubled haploid (DH) population of poplar
Received date: 2023-01-12
Accepted date: 2023-03-02
Online published: 2024-10-16
Copyright
Caixia Liu , Sui Wang , Yi Liu , Meng Wang , Erqin Fan , Chen Liu , Shikai Zhang , Chuanping Yang , Junhui Wang , Heike W. Sederoff , Xiangling You , Vincent L. Chiang , Su Chen , Ronald R. Sederoff , Guanzheng Qu . [J]. 林业研究(英文版), 2023 , 34(6) : 1941 -1950 . DOI: 10.1007/s11676-023-01612-7
Doubled haploid (DH) plants have been widely used for breeding and biological research in crops. Populus spp. have been used as model woody plant species for biological research. However, the induction of DH poplar plants is onerous, and limited biological or breeding work has been carried out on DH individuals or populations. In this study, we provide an effective protocol for poplar haploid induction based on an anther culture method. A total of 96 whole DH plant lines were obtained using an F1 hybrid of Populus simonii × P. nigra as a donor tree. The phenotypes of the DH population showed exceptionally high variance when compared to those of half-sib progeny of the donor tree. Each DH line displayed distinct features compared to those of the other DH lines or the donor tree. Additionally, some excellent homozygous lines have the potential to be model plants in genetic and breeding studies.
Key words: Populus; Anther culture; Doubled haploid; Genetic variance; Flow cytometry
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Hamrick JL, Mitton JB, Linhart YB (1981) Levels of Genetic Variation in Trees: Influence of life history characteristics. Gen. Tech. Rep. PSW-GTR-48. Berkeley, CA: Pacific Southwest Forest and Range Exp. Stn, Forest Service, U.S. Department of Agriculture. pp. 35−41.
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