TY - JOUR
T1 - Organization and distribution pattern of MGLR-3, a novel retrotransposon in the rice blast fungus Magnaporthe grisea
AU - Kang, Seogchan
N1 - Funding Information:
The author thanks Ewen Mullins for critical reading of the manuscript, Bai-Chai Wu for technical assistance, and David Geiser for assisting in the phylogenetic analysis. The author is greatly indebted to his mentor Barbara Valent at DuPont for her guidance and encouragement during his tenure in her laboratory. This work was supported in part by a grant from USDA-NRI (98-35303-6432).
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2001
Y1 - 2001
N2 - A specific telomere was deleted in spontaneous, gain-of-virulence mutants derived from a rice pathogen of Magnaporthe grisea. Three different types of transposons, including Pot2, Mg-SINE, and a novel, 6-kb-long LTR (long terminal repeat)-type retrotransposon designated MGLR-3, were identified on this chromosomal end. The 114-bp-long telomeric repeat is immediately followed by the 3′ LTR of MGLR-3. A truncated copy of Pot2 immediately flanks the 5′ LTR, suggesting that this telomere was generated by a transposition event of MGLR-3 into this Pot2 element, causing the breakage of a chromosome. The subsequent addition of a telomeric repeat to the 3′ LTR of MGLR-3 most probably repaired the broken end of the chromosome. Mg-SINE is located 25 bp away from the truncated Pot2 element. MGLR-3 exhibited strong homology to various gypsy-class retrotransposons, including grh and MAGGY in M. grisea. MGLR-3 is ubiquitous regardless of the host of origin.
AB - A specific telomere was deleted in spontaneous, gain-of-virulence mutants derived from a rice pathogen of Magnaporthe grisea. Three different types of transposons, including Pot2, Mg-SINE, and a novel, 6-kb-long LTR (long terminal repeat)-type retrotransposon designated MGLR-3, were identified on this chromosomal end. The 114-bp-long telomeric repeat is immediately followed by the 3′ LTR of MGLR-3. A truncated copy of Pot2 immediately flanks the 5′ LTR, suggesting that this telomere was generated by a transposition event of MGLR-3 into this Pot2 element, causing the breakage of a chromosome. The subsequent addition of a telomeric repeat to the 3′ LTR of MGLR-3 most probably repaired the broken end of the chromosome. Mg-SINE is located 25 bp away from the truncated Pot2 element. MGLR-3 exhibited strong homology to various gypsy-class retrotransposons, including grh and MAGGY in M. grisea. MGLR-3 is ubiquitous regardless of the host of origin.
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U2 - 10.1006/fgbi.2000.1246
DO - 10.1006/fgbi.2000.1246
M3 - Article
C2 - 11277622
AN - SCOPUS:0035573716
SN - 1087-1845
VL - 32
SP - 11
EP - 19
JO - Fungal Genetics and Biology
JF - Fungal Genetics and Biology
IS - 1
ER -