Genome scanning of Asiatic Vigna species for discerning population genetic structure based on microsatellite variation

Pratap, Aditya; Gupta, Sanjeev; Malviya, Nupur; Tomar, Rakhi; Maurya, Ramanuj; John, K. Joseph; Madhavan, Latha; Singh, Narendra Pratap

doi:10.1007/s11032-015-0355-9

“…This marker was mapped in the F2 mapping population of 168 individuals at a map distance of 12.9 cm. In another study by Pratap et al (2015), 41 wild and 12 cultivated accessions of 13 Vigna species were genotyped using 53 polymorphic microsatellite markers. A total of 539 alleles were detected among 53 accessions at all loci with an average 10.16 alleles per locus.…”

Section: Use Of Molecular Markers In Improvement Of Pulsesmentioning

confidence: 99%

Genetic improvement of mungbean and urdbean and their role in enhancing pulse production in India

Singh¹,

Singh²,

Pratap³

2016

Ind. Jrnl. Gen. Plnt. Bree.

Self Cite

View full text Add to dashboard Cite

The initial varietal development in mungbean and urdbean focused mainly on selection from landraces or the germplasm samples collected, purified and evaluated. However, systematic efforts were made by National Agricultural Research System comprising Indian Council of Agricultural Research and State Agricultural Universities through All India Coordinated Pulses Improvement Project for varietal improvement. National Bureau of Plant Genetic Resources and AICPIP centres collected over 8,000 Vigna genetic resources and also introduced germplasm from other countries and made them available for evaluation. Several resistant donors were identified and used to transfer gene(s) for biotic stresses. As a result, a number of high yielding varieties were developed through intraspecific hybridization. Large numbers of these varieties are resistant to one or more major diseases of the specific agro-eclogical niches. Six varieties in mungbean and two in urdbean were also developed through inter-specific hybridization which had new plant type and resistance to prevalent diseases. However, limited success has been achieved for the development of varieties with resistance to insect-pests and abiotic stresses. There is a need to intensify research in these areas through introgression of desirable alleles from secondary and tertiary gene pool into the cultivated type for yield, photo period and temperature insensivity and insect pest tolerance. The onset of genomics provides massive amount of information, but the success will depend on precise phenotyping to achieve desired restructuring in existing plant type.

show abstract

“…Interestingly, only one genotype of V. unguiculata was used in this study which was clustered separately and therefore may be justified for separate clustering on the basis of acute diversion of morphological features of this species form other species. surprisingly separate grouping of V. umbellata accession PRR 2008-2 is contrary to its clustering in population group 3 (Pratap et al 2015) on the basis of genotyping data and suggests high influence of environment on expression of phenotypic traits which led to its separate grouping. The acute diversion in grouping of accessions of same Vigna species has been suggested earlier by Bisht et al (2005), Yimran et al (2009) and Pratap et al, (2015).…”

Section: Resultsmentioning

confidence: 70%

“…of accessions (29) followed by Cluster III and IV. While cluster III had 9 accessions of different species including V. mungo, V. silvestris, V. tilobata, V. hainiana, V. dalzelliana and V. glabrescens, cluster IV accommodated 4 accessions, all of V. umbellata which was earlier amply justified by genotypic data also, all these accessions were grouped in population group 3 (Pratap et al, 2015). Cluster II and Cluster V comprised of a single genotype each (PRR-2008-2 of V. umbellata and IC 298665 of V. unguiculata) which shows their acute deviation for many morphological traits as compared to other Vigna genotypes.…”

Section: Resultsmentioning

confidence: 84%

See 1 more Smart Citation

Field characterization of endemic wild Vigna accessions collected from biodiversity hotspots of India to identify promising genotypes for multiple agronomic and adaptive traits

Pratap

¹

,

Malviya

²

,

Gupta

³

et al. 2018

Self Cite

View full text Add to dashboard Cite

Wild Vigna species possess a reservoir of useful genes that have potential to be utilized in improvement of cultivated mungbean and urdbean. The level of genetic diversity in representative accessions of cultivated and wild Asiatic Vigna species collected from diversity-rich endemic areas of India was investigated using morphological descriptors. Data were recorded on 27 qualitative and quantitative traits in 44 wild and cultivated accessions belonging to 12 Vigna species grown over 2 years and analyzed to compute mean and variances for each trait. Cluster analysis following unweighted pair group method based on arithmetic mean grouped accessions into five clusters with cluster I accommodating most of the accessions. The different accessions showed variation at species level based on morphological descriptors. 3 accessions viz., IC251424 and IC251425 of V. radiata and IC331436 of V. trilobata were superior for multiple traits viz., number of seeds/pod, seed quality and early maturity. Likewise for seed size, IC 298665 of V. unguiculata and PRR 2008-2 of V. umbellata were identified as promising donors while for earliness, 3 accessions of V. trilobata (IC 331545, IC 349701 and JAP/10-7), 1 of V. radiata (IC 251427) and 1 each of V. mungo (IC 251385) and V. unguiculata (IC 298665) were identified as maturing significantly early and therefore, could be used in hybridization programme for introgression of these traits. This evaluation and characterization study on endemic Vigna species provides useful information for improving mungbean and urdbean cultivars through recombination breeding.

show abstract

“…In general it was observed that all the Vigna accessions differed in various plant, flower and seed characters as characterization on the basis of morphological data revealed presence of at least 2 distinct groups for each character state, sometimes even upto 5 groups such as in case of seed colour. Several earlier workers have also described clear cut distinct groups for various morphological character states in Vigna (Lawn 1995, Tomoka et al, 2000, Bisht et al, 2005, Pratap et al, 2015. Among the species in the mungbean group viz., V. hainiana, V. trilobata, V. mungo var.…”

Section: Resultsmentioning

confidence: 93%

Field characterization of endemic wild Vigna accessions collected from biodiversity hotspots of India to identify promising genotypes for multiple agronomic and adaptive traits

Pratap

¹

,

Malviya

²

,

Gupta

³

et al. 2018

IJARe

Self Cite

View full text Add to dashboard Cite

Wild Vigna species possess a reservoir of useful genes that have potential to be utilized in improvement of cultivated mungbean and urdbean. The level of genetic diversity in representative accessions of cultivated and wild Asiatic Vigna species collected from diversity-rich endemic areas of India was investigated using morphological descriptors. Data were recorded on 27 qualitative and quantitative traits in 44 wild and cultivated accessions belonging to 12 Vigna species grown over 2 years and analyzed to compute mean and variances for each trait. Cluster analysis following unweighted pair group method based on arithmetic mean grouped accessions into five clusters with cluster I accommodating most of the accessions. The different accessions showed variation at species level based on morphological descriptors. 3 accessions viz., IC251424 and IC251425 of V. radiata and IC331436 of V. trilobata were superior for multiple traits viz., number of seeds/pod, seed quality and early maturity. Likewise for seed size, IC 298665 of V. unguiculata and PRR 2008-2 of V. umbellata were identified as promising donors while for earliness, 3 accessions of V. trilobata (IC 331545, IC 349701 and JAP/10-7), 1 of V. radiata (IC 251427) and 1 each of V. mungo (IC 251385) and V. unguiculata (IC 298665) were identified as maturing significantly early and therefore, could be used in hybridization programme for introgression of these traits. This evaluation and characterization study on endemic Vigna species provides useful information for improving mungbean and urdbean cultivars through recombination breeding.

show abstract

Genome scanning of Asiatic Vigna species for discerning population genetic structure based on microsatellite variation

Cited by 33 publications

References 30 publications

Genetic improvement of mungbean and urdbean and their role in enhancing pulse production in India

Genetic improvement of mungbean and urdbean and their role in enhancing pulse production in India

Field characterization of endemic wild Vigna accessions collected from biodiversity hotspots of India to identify promising genotypes for multiple agronomic and adaptive traits

Field characterization of endemic wild Vigna accessions collected from biodiversity hotspots of India to identify promising genotypes for multiple agronomic and adaptive traits

Contact Info

Product

Resources

About