Genetic variability, heritability, genetic advance studies in cowpea germplasm [<i>Vigna unguiculata</i> (L.) Walp.]

Devi, Shilpa; Jayamani, P.

doi:10.5958/0975-928x.2018.00058.3

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The number of alleles produced by above markers ranged from two to five with an average of 2.47 alleles per marker which indicates the high level of genetic diversity. The average number of alleles in this study was more than that of many other species viz., 2.3 alleles in greengram (Gupta et al, 2013), 1.5 alleles in greengram (Kumar et al, 2001), 2.2 alleles in cowpea (Devi and Jayamani, 2020) and 2.87 alleles in mungbean (Ngangkham et al, 2019). The highest number of alleles (5) was recorded by CEDG 097 and CEDG 154 whereas, lowest number of alleles (2) was observed by CEDG 133, CEDG 171 and DMB SSR 014.…”

Section: Resultsmentioning

confidence: 96%

MOLECULAR GENETIC DIVERSITY IN GREENGRAM (Vigna radiata (L.) Wilczek)

Murugesan,

Palaniappan,

Shanmugam

et al. 2023

PLANT ARCHIVES

View full text Add to dashboard Cite

DNA markers were used to characterize the genetic diversity among the germplasm and considered as a promising tool for better understanding of genetic relatedness among the cross derivatives and helps in exploitation of greengram germplasm. The degree of polymorphism exhibited by amplified SSR markers was 50 per cent reflecting the high genetic diversity among the germplasm with 2.47 alleles per marker. The dendrogram based on the Unweighted Pair Group Method using Arithmetic average (UPGMA) hierarchical clustering pattern revealed the 37 genotypes into eight major clusters. All the cultivated genotypes of greengram were grouped together (I), wild progenitor species Vigna radiata var. sublobata/2 and its derivatives were grouped together (II), whereas all other wild species formed into a separate group (III). The clustering pattern observed in the present study revealed the high level of molecular variability and could be used in the improvement of greengram and determines the genetic relationship among the germplasm.

show abstract

Section: Resultsmentioning

confidence: 96%

MOLECULAR GENETIC DIVERSITY IN GREENGRAM (Vigna radiata (L.) Wilczek)

Murugesan,

Palaniappan,

Shanmugam

et al. 2023

PLANT ARCHIVES

View full text Add to dashboard Cite

show abstract

“…However, yield is a complex and difficult trait to be directly improved, as it exhibits low heritability and pleiotropic effects [21]. Broad-sense heritability (H) for seed yield of cowpea ranges from 38.36% to 90.91% [22][23][24][25][26], while the genetic advance recorded in previous studies fluctuates from 4.55 to 8.25 [23,25].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Cowpea Landraces under a Mediterranean Climate

Lazaridi

Bebeli

2023

Plants

View full text Add to dashboard Cite

Cowpea (Vigna unguiculata (L.) Walp.) yield is strongly influenced by environmental conditions. Average seed yield can decrease to a great extent when drought conditions occur, especially when they prevail during flowering and seed filling periods. Identifying genotypes presenting yield stability is one of the most important breeding goals. Local varieties or crop landraces are genetic resources that, despite exhibiting intermediate yield production capacity, present high yield stability in low-input cropping systems. The objective of this study was therefore to evaluate five selected cowpea landraces originated from different Greek islands under Mediterranean climatic conditions. A complete randomized block design with four replications was used during three consecutive cropping seasons. Many phenological and agronomic traits studied showed statistically significant genotype × experimental year interaction, while there was a strong experimental year effect. Among the landraces studied, local population VG23 from Kythira Island was the most productive under the experimental climatic and soil conditions, while local population VG2 from Lemnos Island was characterized by low seed productivity. Conclusively, our study showed that VG23 landrace is a promising genetic material to be used for seed yield improvement.

show abstract

Cowpea Constraints and Breeding in Europe

Lazaridi

Bebeli

2023

Plants

View full text Add to dashboard Cite

Cowpea (Vigna unguiculata (L.) Walp.) is a legume with a constant rate of cultivation in Southern European countries. Consumer demand for cowpea worldwide is rising due to its nutritional content, while Europe is constantly attempting to reduce the deficit in the production of pulses and invest in new, healthy food market products. Although the climatic conditions that prevail in Europe are not so harsh in terms of heat and drought as in the tropical climates where cowpea is mainly cultivated, cowpea confronts with a plethora of abiotic and biotic stresses and yield-limiting factors in Southern European countries. In this paper, we summarize the main constraints for cowpea cultivation in Europe and the breeding methods that have been or can be used. A special mention is made of the availability plant genetic resources (PGRs) and their potential for breeding purposes, aiming to promote more sustainable cropping systems as climatic shifts become more frequent and fiercer, and environmental degradation expands worldwide.

show abstract

Genetic variability, heritability, genetic advance studies in cowpea germplasm [Vigna unguiculata (L.) Walp.]

Cited by 3 publications

References 0 publications

MOLECULAR GENETIC DIVERSITY IN GREENGRAM (Vigna radiata (L.) Wilczek)

MOLECULAR GENETIC DIVERSITY IN GREENGRAM (Vigna radiata (L.) Wilczek)

Evaluation of Cowpea Landraces under a Mediterranean Climate

Cowpea Constraints and Breeding in Europe

Contact Info

Product

Resources

About