The major quantitative trait locus for mungbean yellow mosaic Indian virus resistance is tightly linked in repulsion phase to the major bruchid resistance locus in a cross between mungbean [Vigna radiata (L.) Wilczek] and its wild relative Vigna radiata ssp. sublobata

Chen, Huei-Mei; Ku, Hsin-Mei; Schafleitner, Roland; Bains, T. S.; Kuo, Chun-Yi; Liu, Chien-An; Nair, Ramakrishnan M.

doi:10.1007/s10681-012-0831-9

Cited by 65 publications

(61 citation statements)

References 21 publications

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“…Generally, the phenotypic variance explained (Expl) by QTL is strongly affected by mapping population size and individual gene effects. If two QTLs are linked in the repulsion phase on one chromosome, the Expl value could be significantly biased and increase to even more than 100%6364. Thus, the high contribution of each growth-related QTL in the crab is mostly because the QTLs are tightly linked in repulsion.…”

Section: Resultsmentioning

confidence: 99%

A second generation SNP and SSR integrated linkage map and QTL mapping for the Chinese mitten crab Eriocheir sinensis

Qiu

Xiong

Han

et al. 2017

Sci Rep

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The Chinese mitten crab Eriocheir sinensis is the most economically important cultivated crab species in China, and its genome has a high number of chromosomes (2n = 146). To obtain sufficient markers for construction of a dense genetic map for this species, we employed the recently developed specific-locus amplified fragment sequencing (SLAF-seq) method for large-scale SNPs screening and genotyping in a F1 full-sib family of 149 individuals. SLAF-seq generated 127,677 polymorphic SNP markers, of which 20,803 valid markers were assigned into five segregation types and were used together with previous SSR markers for linkage map construction. The final integrated genetic map included 17,680 SNP and 629 SSR markers on the 73 linkage groups (LG), and spanned 14,894.9 cM with an average marker interval of 0.81 cM. QTL mapping localized three significant growth-related QTL to a 1.2 cM region in LG53 as well as 146 sex-linked markers in LG48. Genome-wide QTL-association analysis further identified four growth-related QTL genes named LNX2, PAK2, FMRFamide and octopamine receptors. These genes are involved in a variety of different signaling pathways including cell proliferation and growth. The map and SNP markers described here will be a valuable resource for the E. sinensis genome project and selective breeding programs.

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Section: Resultsmentioning

confidence: 99%

A second generation SNP and SSR integrated linkage map and QTL mapping for the Chinese mitten crab Eriocheir sinensis

Qiu

Xiong

Han

et al. 2017

Sci Rep

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“…The resistance source for mungbean yellow mosaic India virus (MYMIV) has been reported in urdbean but the significance of resistance is indistinct (Anjum et al, 2010). However, in the recent times, new sources of resistance and molecular markers associated with MYMIV have been identified (Chen et al, 2012). Karthikeyan et al (2011) proclaimed that even though urdbean can be used effectively as resistant source for introgressing MYMV resistance into mungbean, the resistance breaks down very often due to rapid evolution of new pathotype (Kumar, 2010).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Genetic Purity of Inter-Specific F1 Hybrids Involving Vigna Radiata and Vigna Umbellata

Bhanu¹,

Kumar²,

Singh³

et al. 2017

JEBAS

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Genetic purity test of true hybrids from controlled crosses before further generations of selfing or crossing and selection is essential for Mungbean improvement. The present study was conducted to transfer mungbean yellow mosaic (MYM) disease resistance in mungbean from ricebean and to assess the genetic purity of developed inter-specific F1 hybrids using morphological features and microsatellite markers. Inter-specific crosses were made involving two genotypes of mungbean viz., K 851 and TM 96-2 and one genotype of ricebean (RBL 1) where the crossability results revealed significant differences. Crossability was recorded 8.2% (TM 96-2 × RBL 1) and 4.6% (K 851 × RBL 1). Pollen fertility was recorded 1.6% and 3.4% in TM 96-2 × RBL 1 and K 851 × RBL 1, respectively. Morphological features such as epicotyl colour, hypocotyl length, petiole length, germination habit, etc., were used as indicators of true hybridity. Further, the microsatellite markers were used to confirm the genetic purity of the developed inter-specific hybrid. These hybrids exhibited resistance against mungbean yellow mosaic disease under natural epiphytotic field conditions. The present study will be useful in developing high yielding varieties or lines of mungbean coupled with stable MYMV resistance.

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“…Seven codominant cleaved amplified polymorphisms developed from the identified RAPD markers showed tighter linkage with the Br gene than the original RAPD. The mungbean SSR marker DMB-SSR 158 is perfectly associated with bruchid resistance in V2802 (Chotechung et al, 2011) and TC1966 (Chen et al, 2013) with the distance of <0.1 cM between DMB-SSr 158 and the major QTL in TC1966 (Chen et al, 2013). On chromosome 5, this marker is associated with polygalacturonase inhibitor genes ( Vradi05g03940-VrPGIP1 and Vradi05g03950-VrPGIP2 ) that account for resistance to bruchids (Chotechung et al, 2016).…”

Section: Genetic Basis Of Resistancementioning

confidence: 99%

Mechanism of Resistance in Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] to bruchids, Callosobruchus spp. (Coleoptera: Bruchidae)

War¹,

Murugesan²,

Boddepalli³

et al. 2017

Front. Plant Sci.

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Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] is an important pulse crop in Asia, and is consumed as dry seeds and as bean sprouts. It is an excellent source of digestible protein. Bruchids [Callosobruchus chinensis (L.) and Callosobruchus maculatus (F.)] are the important pests of mungbean and cause damage in the field and in storage. Bruchid infestation reduces the nutritional and market value of the grain and renders seeds unfit for human consumption, agricultural and commercial uses. These pests are controlled mainly by fumigation with highly toxic chemicals such as carbon disulfide, phosphene, and methyl bromide, or by dusting with several other insecticides, which leave residues on the grain, thus, threatening food safety. Some plant-based extracts have been found useful in controlling bruchids, but are not fully successful due to their short-term activity, rapid degradability, and potentially negative effect on seed germination. Although some wild sources of bruchid resistance in mungbean have been reported, which have been used to develop bruchid- resistant lines, undesirable genetic linkages threaten the proper exploitation of genetic diversity from wild germplasm into commercial cultivars. Further, biotype variation in bruchids has rendered some mungbean lines susceptible that otherwise would have been resistant to the pest. Host plant resistance is a cost-effective and a safe alternative to control bruchids in mungbean and is associated with morphological, biochemical, and molecular traits. These traits affect insect growth and development, thereby, reduce the yield losses by the pests. Understanding the defense mechanisms against insect pests could be utilized in exploiting these traits in crop breeding. This review discusses different traits in mungbean involved in defense against bruchids and their utility in pest management. We also highlight the breeding constraints for developing bruchid-resistant mungbean and how can these constraints be minimized. We further highlight the importance of supporting conventional breeding techniques by molecular techniques such as molecular markers linked to bruchid resistance.

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The major quantitative trait locus for mungbean yellow mosaic Indian virus resistance is tightly linked in repulsion phase to the major bruchid resistance locus in a cross between mungbean [Vigna radiata (L.) Wilczek] and its wild relative Vigna radiata ssp. sublobata

Cited by 65 publications

References 21 publications

A second generation SNP and SSR integrated linkage map and QTL mapping for the Chinese mitten crab Eriocheir sinensis

A second generation SNP and SSR integrated linkage map and QTL mapping for the Chinese mitten crab Eriocheir sinensis

Assessment of Genetic Purity of Inter-Specific F1 Hybrids Involving Vigna Radiata and Vigna Umbellata

Mechanism of Resistance in Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] to bruchids, Callosobruchus spp. (Coleoptera: Bruchidae)

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