数字农科院2.0

Development And Molecular Cytogenetic Characterization Of Cold-Hardy Perennial Wheatgrass Adapted To Northeastern China

文献类型： 外文期刊

作者： Yan, W; Jin, X; Jiang, B; Qi, XY; Chen, YX; Li, XL; Liu, XQ; Ren, YK; Cui, L; Song, QJ; Li, HJ; Friebe, B; Li, JL; Zhang, YM

作者机构：

关键词： Perennial Wheatgrass; Thinopyrum Intermedium; Cold Hardiness; Molecular Cytogenetic; Chromosome

期刊名称： FRONTIERS IN PLANT SCIENCE

ISSN： 1664-462X

年卷期： 2020 年 11 卷

页码：

收录情况： JCR（2021版）

摘要： Cold-hardy perennial wheatgrass plays an important role in the use of barren land for farming, soil and water conservation, variety improvement, and also for increasing grass yield. By crossing octoploid tritelytrigia (2n = 8x = 56, AABBDDEE) withThinopyrum intermedium(2n = 6x = 42, StStJJJ(S)J(S)), we developed 34 lines of perennial wheatgrass from F(1)to F(6)generations, which had vigorous regrowth and cold hardiness. The cold-hardy, perennial wheatgrass lines were well-adapted to the cold environment and developed root and rhizomes, with a longevity between 5 and 11 years and a better seed set. Some of them maintained wheat chromosomes beneficial for breeding perennial wheat. Molecular cytogenetic analysis demonstrated that theTh. intermediumchromosomes contributed the most to the synthetic genome of the wheatgrass hybrids and were associated with the perennial growth habit and winter hardiness. They were also preferentially maintained and transmitted to the progenies. Some wheat chromosomes were also transmitted from the F(1)to F(6)generations, although they were eliminated in each life cycle of the wheatgrass hybrids. The numbers of wheat andTh. intermediumchromosomes affected seed set and perennial growth habit. Seed set increased with the establishment of a more balanced genomic constitution in later generations. The cold-hardy and perennial wheatgrass lines were produced, which can be the starting point of domestication effort aimed at producing well-adapted ground cover plants under extreme environments.

分类号：

  • 相关文献

[1]Fine-mapping reveals that the bHLH gene Cla011508 regulates the bitterness of watermelon fruit. Gong C., Li B., Anees M., Zhu H., Zhao S., He N., Lu X., Liu W.. 2022

[2]Silencing The Myosin Regulatory Light Chain Gene Sqh Reduces Cold Hardiness In Ophraella Communa Lesage (Coleoptera: Chrysomelidae). Tian, ZQ, Zhang, Y, Ma, C, Chen, HS, Guo, JY, Zhou, ZS. 2020

[3]Heritability And Evolutionary Potential Drive C.old Hardiness In The O verwintering Ophraella Communa Beetles. Ma, Fangzhou,Ma, Fangzhou,Zhao, Chenchen,Zhou, Zhongshi,Wan, Fanghao,Chen, Hongsong,Guo, Jianying. 2018

作者其他论文 更多>>