Resistance to bean common mosaic potyvirus strains and its inheritance in some Indian land races of common bean

Pathania, Anju; Kapil, R. P.; Sharma, Prachi; Sharma, Om P.; Patial, Madhu; Kapoor, V.

doi:10.1007/s10681-008-9689-2

Cited by 20 publications

(14 citation statements)

References 16 publications

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“…The genetic and molecular characterization of the "I" locus of the P. vulgaris was studied (Eduardo Vallejos et al, 2006). In India, the presence of "I" gene was confirmed in some of the bean accessions of diverse origin when they were evaluated for resistance against BCMV strains and for inheritance patterns in selected cultivars against the strain NL-1 (Sharma et al, 2008). In Spain, the introgression and pyramiding of genes conferring genetic resistance to BCMV and anthracnose local races into breeding lines A25 and A3308 was reported (Ferreira, Campa, Perez-Vega, RodriguezSuarez, & Giraldez, 2012).…”

Section: Common Mosaic and Black Rootmentioning

confidence: 99%

Tropical Food Legumes

Hema

Sreenivasulu

Patil

et al. 2014

Advances in Virus Research

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Section: Common Mosaic and Black Rootmentioning

confidence: 99%

Tropical Food Legumes

Hema

Sreenivasulu

Patil

et al. 2014

Advances in Virus Research

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“…Thus, the serological test enabled us to confirm the observed genetic resistance to natural infections by PVY and EPMV to be symptomless tolerance (partial resistance). The absence of systemic symptom expression in the presence of virus infection, with a positive serological test, in a crop plant was referred by Silva et al (2004) and Sharma et al (2008) as genetic tolerance while they described the reverse case as genetic susceptibility. Visible symptom expressions, including decreased plant vigor and growth resulting from virus infections are the common causes for biomass yield losses in crop plants (Fereres et al 1993;Fereres 2000).…”

Section: Species and Population Of Alate Aphidsmentioning

confidence: 99%

Occurrence of aphid vector and genetic tolerance to infection by potyvirus in hot pepper

et al. 2009

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The productivity and marketable quality of hot pepper (Capsicum annuum var. annuum L.) are low in tropical regions mainly due to virus infections and lack of effective virus management strategies. The absence of effective virus management strategies could be attributed to lack of information on virus vectors and host resistance. Parental (P 1 and P 2 ) and progeny (F 1 , B 1 , B 2 and F 2 ) generations of five hot pepper crosses were grown in Ethiopia at three sites (Bako, Hawasa and Melkasa) to monitor number and species of potential aphid vectors, disease incidence levels with regards to natural infections by Potato virus Y (PVY) and Ethiopian pepper mottle virus (EPMV) complex, and to determine genetic tolerance of the crop to the viruses. Disease incidence was assessed before the flowering stage of the crop plants using visible disease symptoms due to infections by PVY and EPMV. The serological tests revealed presence of symptomless genotypes of the crop to the virus infections. Aphid species potentially transmitting the viruses, such as Acyrthosiphon pisum (Harris), Aphis fabae (Scopoli), and Myzus persicae (Sulzer), were identified from specimens caught by yellow water traps. The highest number of aphids from yellow water traps was recorded at a dense foliage growth stage of the crop at Melkasa. Highly significant variation was observed among generations of the five crosses in response to infections by PVY and EPMV complex. The most susceptible parents had the levels of disease incidences ranging from 80 to 90%, whereas their progenies had only below 30% incidence levels. The most tolerant parent remained symptomless to the natural infections of PVY-and EPMV-complex. Incidence levels in progenies of a cross from the most susceptible and tolerant parents remained below 20%. Based on serological test, the proportion of PVY-positive plants ranged from 0 to 75% and of EPMV-positive plants from 0 to 25%, with 0 to 17% co-infection by the two viruses. Availability of virus sources in the vicinity, efficiency of aphids in vectoring, weather conditions during the growth period, genetic tolerance and the growth stage of the crop affected natural infection by PVY-and EPMV-complex. Exploitation of the genetic potential of introduced elite genotypes and their progenies along with breeding elite local cultivars for resistance Electronic supplementary material The online version of this article (and excluding aphid vectors at young (seedling) stage of the crop plants could be helpful for minimizing losses in yield and quality of hot pepper due to infections by PVY-and EPMV-complex.

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“…Common bean (Phaseolus vulgaris L.) locally called as 'Rajmash', is one of the major food legumes grown throughout the world including India [13,24]. It is a premier pulse crop of north-western Himalayan states of India and is commercially cultivated in diverse ecological niches falling in altitudinal ranges of 900-3,000 masl.…”

Section: Introductionmentioning

confidence: 99%

Analysis of 3′-Terminal Region of Bean common mosaic virus Strains Infecting Common Bean in India

et al. 2011

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Four strains (NL-1, NL-1n, NL-7 and NL-7n) of Bean common mosaic virus (BCMV) prevalent on common bean (Phaseolus vulgaris) in Himachal Pradesh, a north-western Himalayan state of India were compared at the 3 0 terminal region of the viral genome to elucidate variation and relationship among these strains. 3 0 terminal region comprising of partial nuclear inclusion b (NIb) (171-233 bp), complete coat protein (CP) (860 bp) and 3 0 untranslated region (UTR) (208-244 bp) shared 96-98% nucleotide and 96-99% amino acids identity among various strains of BCMV. Multiple alignment as well as cluster dendrograms of the 3 0 terminal region placed the test isolates in BCMV species of genus Potyvirus. Phylogenetic analysis of complete CP as well as 3 0 UTR also showed Indian strains to be distinct strains. Sequence homology, multiple alignment and evolutionary divergence of 3 0 terminal region could not differentiate the pathogenic strain groups, thereby establishing least role of this region in strain characterization of the virus. Comparisons of CP and 3 0 UTR region of BCMV strains and other members of genus Potyvirus clearly indicated the little utility of 3 0 terminal region in distinction of virus strains. Implications of coat protein region in viral strain distinction are also discussed.

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Resistance to bean common mosaic potyvirus strains and its inheritance in some Indian land races of common bean

Cited by 20 publications

References 16 publications

Tropical Food Legumes

Tropical Food Legumes

Occurrence of aphid vector and genetic tolerance to infection by potyvirus in hot pepper

Analysis of 3′-Terminal Region of Bean common mosaic virus Strains Infecting Common Bean in India

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