LRR) in various plants. However, no research on the dynamic evolution of these genes in domesticated species and their progenitors has been reported. Recently published genome sequences of bread wheat and its two ancestors provide a good opportunity for comparing NBS-encoding genes between ancestors and their progeny. Over 2000 NBS-encoding genes have been identified in bread wheat, which is the largest number having been reported so far. Compared with other grass species, its two progenitors also contained more NBS-encoding genes, indicating that there was an expansion of these genes in their common ancestor. Interestingly, the inherited relationships of NBS-em class="a-plus-plus">LRR genes among the bread wheat and its two progenitors were ambiguous and only 3?% single-copy orthologues retained gene order in three-way genome comparisons of the three genomes. Lots of NBS-encoding genes present in the either ancestor could not be found in the bread wheat. These results indicated that NBS-em class="a-plus-plus">LRR genes in bread wheat might have evolved rapidly through a rapid loss of ancestor genes." />
Dynamic evolution of NBS-em class="a-plus-plus">LRR genes in bread wheat and its progenitors
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  • 作者:Longjiang Gu ; Weina Si ; Lina Zhao ; Sihai Yang…
  • 关键词:NBS–LRR gene ; Bread wheat ; Triticum urartu ; Aegilops tauschii ; Dynamic evolution
  • 刊名:Molecular Genetics and Genomics
  • 出版年:2015
  • 出版时间:April 2015
  • 年:2015
  • 卷:290
  • 期:2
  • 页码:727-738
  • 全文大小:1,480 KB
  • 参考文献:1. Aghaee-Sarbarzeh M, Dhaliwah HS, Singh H (2001) Suppression of rust resistance genes from distantly related species in Triticum durum-Aegilops amphiploids. In: Proceedings of the First Regional Conference on Yellow Rust in the Central and West Asia and North Africa Region, Karaj, Iran
    2. Ameline-Torregrosa, C, Wang, BB, O’Bleness, MS, Deshpande, S, Zhu, H, Roe, B, Young, ND, Cannon, SB (2008) Identification and characterization of nucleotide-binding site-leucine-rich repeat genes in the model plant Medicago truncatula. Plant Physiol 146: pp. 5-21 CrossRef
    3. Brenchley, R, Spannagl, M, Pfeifer, M, Barker, GL, D’Amore, R, Allen, AM, McKenzie, N, Kramer, M, Kerhornou, A, Bolser, D, Kay, S, Waite, D, Trick, M, Bancroft, I, Gu, Y, Huo, N, Luo, MC, Sehgal, S, Gill, B, Kianian, S, Anderson, O, Kersey, P, Dvorak, J, McCombie, WR, Hall, A, Mayer, KF, Edwards, KJ, Bevan, MW, Hall, N (2012) Analysis of the bread wheat genome using whole-genome shotgun sequencing. Nature 491: pp. 705-710 CrossRef
    4. Bryan, GT, Wu, KS, Farrall, L, Jia, Y, Hershey, HP, McAdams, SA, Faulk, KN, Donaldson, GK, Tarchini, R, Valent, B (2000) tA single amino acid difference distinguishes resistant and susceptible alleles of the rice blast resistance gene Pi-ta. Plant Cell 12: pp. 2033-2046 CrossRef
    5. Cloutier, S, McCallum, BD, Loutre, C, Banks, TW, Wicker, T, Feuillet, C, Keller, B, Jordan, MC (2007) Leaf rust resistance gene Lr1, isolated from bread wheat (Triticum aestivum L.) is a member of the large psr567 gene family. Plant Mol Biol 65: pp. 93-106 CrossRef
    6. Collins, N, Drake, J, Ayliffe, M, Sun, Q, Ellis, J, Hulbert, S, Pryor, T (1999) Molecular characterization of the maize Rp1-D rust resistance haplotype and its mutants. Plant Cell 11: pp. 1365-1376 CrossRef
    7. Devos, KM, Gale, MD (2000) Genome relationships: the grass model in current research. Plant Cell 12: pp. 637-646 CrossRef
    8. Dvorak, J, Akhunov, ED, Akhunov, AR, Deal, KR, Luo, MC (2006) Molecular characterization of a diagnostic DNA marker for domesticated tetraploid wheat provides evidence for gene flow from wild tetraploid wheat to hexaploid wheat. Mol Biol Evol 23: pp. 1386-1396 CrossRef
    9. Fahima TCJ, Peng JH, Nevo E, Korol A (2006) Asymmetry distribution of disease resistance genes and domestication synrome QTLs in tetraploid wheat genome. In: Proceedings of the 8th International Congress of Plant Molecular Biology, Adelaide, Australia
    10. Feldman, M, Levy, AA (2012) Genome evolution due to allopolyploidization in wheat. Genetics 192: pp. 763-774 CrossRef
    11. Feldman, M, Levy, AA, Fahima, T, Korol, A (2012) Genomic asymmetry in allopolyploid plants: wheat as a model. J Exp Bot 63: pp. 5045-5059 CrossRef
    12. Feuillet, C, Travella, S, Stein, N, Albar, L, Nublat, A, Keller, B (2003) Map-based isolation of the leaf rust disease resistance gene Lr10 from the hexaploid wheat (Triticum aestivum L.) genome. Proc Natl Acad Sci U S A 100: pp. 15253-15258 CrossRef
    13. Flor, HH (1956) The complementary genetics systems in flax and flax rust. Adv Genet 8: pp. 29-54 CrossRef
    14. Fu, D, Uauy, C, Distelfeld, A, Blechl, A, Epstein, L, Chen, X, Sela, H, Fahima, T, Dubcovsky, J (2009) A kinase-START gene confers temperature-dependent resistance to wheat stripe rust. Science 323: pp. 1357-1360 CrossRef
    15. Guo, YL, Fitz, J, Schneeberger, K, Ossowski, S, Cao, J, Weigel, D (2011) Genome-wide comparison of nucleotide-binding site-leucine-rich repeat-encoding genes in Arabidopsis. Plant Physiol 157: pp. 757-769
  • 刊物类别:Biomedical and Life Sciences
  • 刊物主题:Life Sciences
    Cell Biology
    Biochemistry
    Microbial Genetics and Genomics
  • 出版者:Springer Berlin / Heidelberg
  • ISSN:1617-4623
文摘
Extensive studies have focused on the largest class of disease resistance genes (nucleotide binding site-leucine-rich repeat, NBS-em class="a-plus-plus">LRR) in various plants. However, no research on the dynamic evolution of these genes in domesticated species and their progenitors has been reported. Recently published genome sequences of bread wheat and its two ancestors provide a good opportunity for comparing NBS-encoding genes between ancestors and their progeny. Over 2000 NBS-encoding genes have been identified in bread wheat, which is the largest number having been reported so far. Compared with other grass species, its two progenitors also contained more NBS-encoding genes, indicating that there was an expansion of these genes in their common ancestor. Interestingly, the inherited relationships of NBS-em class="a-plus-plus">LRR genes among the bread wheat and its two progenitors were ambiguous and only 3?% single-copy orthologues retained gene order in three-way genome comparisons of the three genomes. Lots of NBS-encoding genes present in the either ancestor could not be found in the bread wheat. These results indicated that NBS-em class="a-plus-plus">LRR genes in bread wheat might have evolved rapidly through a rapid loss of ancestor genes.

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