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在宿主决定因素存在的情况下，小麦印度腥黑穗病菌（Tilletia indica）基因组成的改变

Alteration of Genetic Make-up in Karnal Bunt Pathogen (Tilletia indica) of Wheat in Presence of Host Determinants.

作者信息

Gupta Atul K, Seneviratne J M, Bala Ritu, Jaiswal J P, Kumar Anil

机构信息

Department of Molecular Biology and Genetic Engineering, CBSH, G.B. Pant University of Agriculture and Technology, Pantnagar.

Department of Plant Breeding and Genetics, Punjab Agriculture University, Ludhiana.

出版信息

Plant Pathol J. 2015 Jun;31(2):97-107. doi: 10.5423/PPJ.OA.10.2014.0106. Epub 2015 Jun 30.

DOI:10.5423/PPJ.OA.10.2014.0106
PMID:26060428
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4454003/
Abstract

Alteration of genetic make-up of the isolates and monosporidial strains of Tilletia indica causing Karnal bunt (KB) disease in wheat was analyzed using DNA markers and SDS-PAGE. The generation of new variation with different growth characteristics is not a generalized feature and is not only dependant on the original genetic make up of the base isolate/monosporidial strains but also on interaction with host. Host determinant(s) plays a significant role in the generation of variability and the effect is much pronounced in monosporidial strains with narrow genetic base as compared to broad genetic base. The most plausible explanation of genetic variation in presence of host determinant(s) are the recombination of genetic material from two different mycelial/sporidia through sexual mating as well as through para-sexual means. The morphological and development dependent variability further suggests that the variation in T. indica strains predominantly derived through the genetic rearrangements.

摘要

利用DNA标记和SDS - PAGE分析了引起小麦印度腥黑穗病（KB病）的印度腥黑粉菌分离株和单孢菌株的基因组成变化。具有不同生长特性的新变异的产生并非普遍特征，它不仅取决于基础分离株/单孢菌株的原始基因组成，还取决于与宿主的相互作用。宿主决定因素在变异性的产生中起重要作用，与具有广泛基因库的单孢菌株相比，在基因库狭窄的单孢菌株中这种效应更为明显。在存在宿主决定因素的情况下，遗传变异最合理的解释是通过有性交配以及准性生殖方式，来自两种不同菌丝体/孢子的遗传物质发生重组。形态学和发育依赖性变异进一步表明，印度腥黑粉菌菌株的变异主要源于基因重排。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/62f9dee58ae5/ppj-31-97f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/a551f6ec4499/ppj-31-97f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/a65e01c03666/ppj-31-97f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/7bdc97ac795e/ppj-31-97f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/577b029c7d1a/ppj-31-97f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/62f9dee58ae5/ppj-31-97f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/a551f6ec4499/ppj-31-97f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/ce21fe11907d/ppj-31-97f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/ceded0331e6d/ppj-31-97f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/a65e01c03666/ppj-31-97f4.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/577b029c7d1a/ppj-31-97f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7d8/4454003/62f9dee58ae5/ppj-31-97f7.jpg

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