Genetic analysis of disease resistance againstXanthomonas campestrispv.moriin mulberry (Morusspp.) and identification of germplasm with high resistance

Banerjee, Rita; Maji, M. D.; Ghosh, Parthadeb; Sarkar, A.

doi:10.1080/03235400601069563

Cited by 8 publications

(8 citation statements)

References 8 publications

(7 reference statements)

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“…The obtained DSI values confirm our previous findings of resistance and susceptibility in these lines (Banerjee et al 2009). …”

Section: Discussionsupporting

confidence: 92%

“…Nevertheless, the sources of BLS resistance have been identified under field condition (Banerjee et al 2009), but mulberry resistance to BLS is polygenic and quantitatively inherited (Banerjee et al 2012). This coupled with high heterozygous plant behaviour and sex-incompatibility are the major impediments for targeted BLS improvement in mulberry.…”

Section: Introductionmentioning

confidence: 98%

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Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Banerjee

Chattopadhyay

Saha

et al. 2014

Archives Of Phytopathology And Plant Protection

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Xanthomonas campestris pv. mori causes bacterial leaf spot (BLS) of mulberry (Morus spp.) worldwide. Twenty mulberry lines with contrasting response to BLS showed significant (p < 0.01) variation between resistant and susceptible groups for stomata frequency (SF), trichome density (TD), total soluble sugar (TSS) and polyphenol (PP) content, while non-significant for chlorophyll content. Heritability (broad-sense) estimates obtained from the variance component analysis were high (≥0.72) for these traits. The disease severity index values of the lines were significantly negatively correlated with TD (r = −0.66; p < 0.01), TSS (r = −0.73; p < 0.01) and PP (r = −0.61; p < 0.01), while positively correlated with SF (r = 0.65; p < 0.01). The cluster analysis was based on highly significant four variables and DSI values, and classified the lines into two major clusters. The resistant lines that come under cluster-I had high TD, TSS and PP, while those in susceptible category had high SF in cluster-II. These findings suggest that direct selection for SF, TD, TSS and PP will be effective for development of host resistance against BLS in mulberry.

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“…The obtained DSI values confirm our previous findings of resistance and susceptibility in these lines (Banerjee et al 2009). …”

Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 98%

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Banerjee

Chattopadhyay

Saha

et al. 2014

Archives Of Phytopathology And Plant Protection

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“…Screening of mulberry germplasm using pathogenic L. theobromae isolates, and identification of highly durable BRR resistant varieties can aid in achieving sustainable sericulture. Mulberry researchers in India have identified resistant accessions to bacterial leaf spot (Xanthomonas campestris), powdery mildew (Phyllactinia corylea), charcoal root rot (M. phaseolina), and root knot (Arunakumar et al, 2021;Banerjee et al, 2009;Chattopadhyay et al, 2010;Maji, 2011;Pinto et al, 2018). To our knowledge, there is no report on screening of germplasm resistance against L. theobromae causing BRR.…”

Section: Discussionmentioning

confidence: 99%

Characterization and Pathogenicity of Lasiodiplodia theobromae Causing Black Root Rot and Identification of Novel Sources of Resistance in Mulberry Collections

et al. 2022

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Black root rot (BRR) caused by Lasiodiplodia theobromae is an alarming disease of mulberry that causes tremendous economic losses to sericulture farmers in India and China. Successful control of this disease can be attained by screening germplasm and identifying resistant sources. Seventy four diseased root samples were collected from farmer’s fields belonging to four major mulberry growing states of South India. Based on morpho-cultural and scanning electron microscopy studies, 57 fungal isolates were characterized and identified as L. theobromae. Phylogenetic analysis of concatenated internal transcribed spacer and β-tubulin sequences revealed variation of the representative 20 isolates of L. theobromae. Following the root dip method of inoculation, pathogenicity studies on susceptible mulberry genotypes (Victory-1 and Thailand male) recognized the virulent isolate MRR-142. Accordingly, MRR-142 isolate was used to evaluate resistance on a set of 45 diverse mulberry accessions. In the repeated experiments, the mulberry accession ME-0168 which is an Indonesian origin belonging to Morus latifolia was found to be highly resistant consistently against BRR. Eight accessions (G2, ME-0006, ME-0011, ME-0093, MI-0006, MI-0291, MI-0489, and MI-0501) were found to be resistant. These promising resistant resources may be exploited in mulberry breeding for developing BRR resistant varieties and to develop mapping populations which successively helps in the identification of molecular markers associated with BRR.

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“…It was diagnosed as plant bacterial disease and found that a majority of the wilt plants surveyed were not caused by R. solanacearum. Eight bacterial diseases of mulberry have been reported to be caused by different species in six genuses (Erwinia, Ralstonia, Pseudomonas, Phytoplasm, Xanthomonas and Xylella) [8][9][10]. However, no mulberry bacterial disease associated with Enterobacter was reported so far.…”

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confidence: 99%

Enterobacter spp.: A new evidence causing bacterial wilt on mulberry

Zhu

Wang

Xie

et al. 2010

Sci. China Life Sci.

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Thirty-six pathogenetic bacterial strains were isolated from wilted mulberry plants in Hangzhou, Zhejiang province of China. The six representative strains were confirmed to be involved in more than one Enterobacter species by common bacteriological test, electron microscope observation, hypersensitive reaction, Koch's postulates, physiological and biochemical test, biology, fatty acid methyl esters analysis (FAMEs), enterobacterial repetitive intergenic consensus-PCR (ERIC-PCR), 16s rRNA sequences analysis, and comparative analysis with 7 type strains and 3 reference strains. This is the first report on mulberry disease caused by Enterobacter spp. in the world providing new evidence on induction of the plant disease in this genus. The results are not only important in the mulberry disease management but also have significant scientific value for further studies of opportunistic human pathogens and environmental strains in Enterobacter.

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Genetic analysis of disease resistance againstXanthomonas campestrispv.moriin mulberry (Morusspp.) and identification of germplasm with high resistance

Cited by 8 publications

References 8 publications

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Characterization and Pathogenicity of Lasiodiplodia theobromae Causing Black Root Rot and Identification of Novel Sources of Resistance in Mulberry Collections

Enterobacter spp.: A new evidence causing bacterial wilt on mulberry

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