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Genetic Diversity and Population Structure Analyses in Bitter Gourd (Momordica charantia L.) Based on Agro-Morphological and Microsatellite Markers

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Title Genetic Diversity and Population Structure Analyses in Bitter Gourd (Momordica charantia L.) Based on Agro-Morphological and Microsatellite Markers
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Creator K. N. Mallikarjuna
Bhoopal Singh Tomar
Manisha Mangal
Naveen Singh
Deepak Singh
Sachin Kumar
Avinash Tomer
Balraj Singh
Gograj Singh Jat
 
Subject bitter gourd
diversity
population structure
microsatellite markers
gene flow
 
Description Not Available
Bitter gourd (Momordica charantia L.) is an important vine crop of the Cucurbitaceae family and is well known for its high nutritional and medicinal values. However, the genetic variation remains largely unknown. Herein, 96 diverse bitter gourd genotypes were undertaken for diversity analysis using 10 quantitative traits, and 82 simple sequence repeat (SSR) markers. Out of 82 SSRs, 33 were polymorphic and the mean polymorphism information content (PIC) value was 0.38. Marker, JY-003 revealed a maximum (0.81) PIC value and, the number of alleles per locus ranged from 2 to 7 (average 3.46). The value of gene diversity showed the presence of a significant level of polymorphism among these genotypes. The unweighted pair group method (UPGMA) cluster analysis grouped the genotypes into two major clusters of which Cluster I comprised mostly small and mediumfruited genotypes of both M. charantia var. charantia and M. charantia var. muricata, whereas Cluster II included mostly long and extra-long fruited genotypes. Furthermore, these genotypes were divided into six distinct groups based on population structure analysis. The diversity analysis based on 10 quantitative traits revealed that earliness and high-yielding ability were exhibited by the predominantly gynoecious line DBGS-21-06 followed by DBGS-48-00. The principal component analysis (PCA) revealed that the first two components exhibited more than 50% of the total genetic variation. The present study deciphered a higher magnitude of agro-morphological and genetic diversity in 96 bitter gourd genotypes. Therefore, trait-specific genotypes identified in this study could be utilized in breeding programmes directed towards the development of improved cultivars and hybrids of bitter gourd.
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Date 2024-04-05T10:45:09Z
2024-04-05T10:45:09Z
2023-10-09
 
Type Article
 
Identifier Mallikarjuna, K.N.; Tomar, B.S.; Mangal, M.; Singh, N.; Singh, D.; Kumar, S.; Tomer, A.; Singh, B.; Jat, G.S. Genetic Diversity and Population Structure Analyses in Bitter Gourd (Momordica charantia L.) Based on Agro-Morphological and Microsatellite Markers. Plants 2023, 12, 3512. https://doi.org/10.3390/ plants12193512
10.3390/ plants12193512
http://krishi.icar.gov.in/jspui/handle/123456789/81826
 
Language English
 
Relation Not Available;
 
Publisher MDPI