Motivation for On-farm Conservation of Mango (<i>Mangifera indica</i>) Diversity in India–A Case Study

Gajanana, T.M.; Dinesh, .; Rajan, Shailendra; Vasudeva, R.; Singh, Sanjay Kumar; Lamers, H.; Parthasarathy, VA; Sthapit, B.R.; Rao, V. Ramanatha

doi:10.5958/0976-1926.2015.00001.7

Cited by 10 publications

(8 citation statements)

References 8 publications

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“…Mangoes have high genetic diversity with a complex history of domestication through various innovative modern breeding techniques (Warschefsky and von Wettberg 2019). Many "new" mango varieties are given unique names, particularly in Indonesia (Gajanana et al 2015;Rahman 2020). The genetic diversity of mangoes in Indonesia is very high; Eighty-two mango varieties that have been using morphological and molecular markers show a similarity coefficient of 0.12-0.40 (Fitmawati et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Microsatellites to reveal genetic diversity and to distinguish four mangoes of Tegal District, Central Java, Indonesia

et al. 2021

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Abstract. Hidayat A, Rahayu ES, Abdullah M, Retnoningsih A. 2021. Microsatellites to reveal genetic diversity and to distinguish four mangoes of Tegal District, Central Java, Indonesia. Biodiversitas 22: 3467-3473. The Wirasangka mango is Tegal District’s flora of identity, which requires recognition, and its existence deserves to be preserved. However, based on the morphology of the fruit, most of the people of Tegal still have difficulty distinguishing the wirasangka mango from other mangoes. Molecular markers are needed to ascertain the differences between these mango varieties. Microsatellite DNA is a repeating DNA of stable DNA markers with high repeatability and polymorphism. This study analyzes the level of genetic diversity and microsatellite alleles that can differentiate four mangoes from Tegal District, Central Java, Indonesia, i.e. wirasangka, tengkueh, golek, and okyong. Eleven accessions of six locations in Tegal District were analyzed using ten microsatellite loci. The microsatellite amplification result was separated using electrophoresis in 6% polyacrylamide gel and then visualized with silver dye. A total of 35 microsatellite alleles were found measuring 100-1000 bp, ranging from 1-7 alleles for each locus. The average polymorphism information content (PIC) of 0.54 indicates that genetic diversity is relatively high and informative. Therefore, the microsatellite alleles can be used to differentiate mango varieties. The specific allele characteristic of wirasangka mango accession is locus AJ63516, with an allele size of 600-700bp.

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Section: Introductionmentioning

confidence: 99%

Microsatellites to reveal genetic diversity and to distinguish four mangoes of Tegal District, Central Java, Indonesia

et al. 2021

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“…Fruit and cereal groups together contribute more than ¾ of the total landraces documented. Pulses (19), medicinal (10) and plantation crops (13) jointly put up a very limited number of landraces (42) having only 4.58% of the total landraces. A su cient number of landraces is provided by vegetables (61), spices (48) and tuber crops (32) comprise of 15.38% landrace abundance (Fig.…”

Section: Composition and Diversity Of Landracesmentioning

confidence: 99%

“…We also observed that the duplicates were high in cereal (i.e., rice) (152/482) followed by the fruits (54/252). Tuber crops consist of 32 landraces from different crops and all the reported are unique in the same as in plantation crops (13) and medicinal plants group (10). Meanwhile, in vegetables, spices and pulses only a few duplicate landraces have been noted during the survey (Fig.…”

Section: Composition and Diversity Of Landracesmentioning

confidence: 99%

“…Though the economic bene t is the major driver of conservation (Ocimati et al 2013;Ocimati et al 2014), non-economic factors like prestige for being the owner of diversity (Gajanana et al 2015), exchange of speci c landraces and their products with neighbors, relatives and family friends (Subedi et al 2003) are among other which motivates many farmers to engage in on-farm conservation. Landraces/traditional folk varieties are also conserved because of their adaptability to agro-climatic conditions viz., higher rainfall in the western side of the Western Ghats (adaptation of rice landraces for rainfed condition (Kayime), rabi season (Kutti Kayime) in Dakshina Kannada), low fertility of forest soils in Uttara Kannada (tuber crops in Joida) (Asha et al 2017) and Shivamogga.…”

Section: Determinants Of On-farm Conservationmentioning

confidence: 99%

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On-farm conservation of crop diversity: A case study of landraces from Western Ghats of Karnataka, India

Puneeth,

Gowthami,

Katral

et al. 2023

Preprint

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Landraces cultivated in four districts of Karnataka spread across Central Western Ghats, India were systematically documented. A snowball sampling approach was adopted to identify the custodian farmers. As many as 917 landraces belonging to 62 different crops from the target area could be documented. Sites were not uniform with respect to species richness and landrace diversity. The study could identify the critical factors that determine on-farm conservation as (i) suitability to regional conditions, (ii) relevance in regional cuisine and the local medicinal practices, (iii) cultural and traditional significance and (iv) the economic advantage. In order to promote the use of landraces and ensure their availability for future generations, custodian farmers were found to freely share their seeds. Factors unfavorable to on-farm conservation practice included the popularity of high-yielding varieties, inadequate market for native cultivars, inadequate dissemination of knowledge about landraces and their special uses, lack of interest among youth towards traditional agriculture, dearth of genuine seeds and relative low yields. The information documented in this study is expected to promote conservation and marketing of landraces as well as their use in breeding programmes.

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“…Successful on-farm conservation strategies would also depend on getting insight into the reasons underlying the conservation of genetic resources. For instance, in India, mango genetic resources custodians are mainly motivated by economic gain; prestige for having high diversity; exploitation of specific traits like taste and aroma; and material exchange with relatives, friends, and neighbors [59].…”

Section: Implications For Conservation and Utilization Of Mango Genetmentioning

confidence: 99%

Diversity of a Large Collection of Natural Populations of Mango (Mangifera indica Linn.) Revealed by Agro-Morphological and Quality Traits

et al. 2020

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Collection, characterization and utilization of genetic resources are crucial for developing varieties to meet current and future needs. Although mango is an economically important fruit tree, its genetic resources are still undocumented and are threatened in their natural habits. In this study, the variability of 452 mango accessions from three regions in China (Nujiang, Lancang river and Honghe) was assessed using 41 descriptors including qualitative and quantitative traits, with the aim to identify mango accessions with excellent agronomic and quality traits. To this end, descriptive and multivariate analyses were performed. Based on Shannon–Weaver diversity index, qualitative traits including pericarp color, fruit aroma, flesh color, and fruit flavor recorded the highest variability in the germplasm. Fruit related traits including pulp weight, peel weight, and fruit weight were the most diverse traits in the germplasm with a high coefficient of variation (CV > 40%). Significant differences (MANOVA test, p < 0.000) were observed among the three regions for most of the quantitative traits. Biologically significant and positive correlations were found among agronomically important traits such as fruit weight and pulp weight, fruit weight and edible rate. The hierarchical cluster analysis revealed tree clusters, indicating a low diversity in the germplasm. The majority of the descriptors contributed to the differentiation of the accessions. Accessions with good fruits quality (high fruit weight, pulp weight, and edible rate) were found in Cluster 2. Accessions in this cluster could be used for fruit quality improvement in mango breeding programs. Our study sheds light on the diversity of a large collection of natural mango population in China and provides relevant information for efficient conservation and harnessing of mango genetic resources.

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Motivation for On-farm Conservation of Mango (Mangifera indica) Diversity in India–A Case Study

Cited by 10 publications

References 8 publications

Microsatellites to reveal genetic diversity and to distinguish four mangoes of Tegal District, Central Java, Indonesia

Microsatellites to reveal genetic diversity and to distinguish four mangoes of Tegal District, Central Java, Indonesia

On-farm conservation of crop diversity: A case study of landraces from Western Ghats of Karnataka, India

Diversity of a Large Collection of Natural Populations of Mango (Mangifera indica Linn.) Revealed by Agro-Morphological and Quality Traits

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