Systematics and Evolution of Eleusine Coracana (Gramineae)

Wet, J. M. J. de; Rao, K E P; Brink, D. E.; Mengesha, M. H.

doi:10.1002/j.1537-2197.1984.tb12540.x

Cited by 49 publications

(30 citation statements)

References 16 publications

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“…The existence of two population groups within E. coracana subsp. coracana, corresponding largely to the African and Asian continents and the lower diversity within the latter group is consistent with the theory that finger millet was domesticated in Africa and then introduced into India with the two groups remaining largely isolated until recent times [3]. The two subpopulations basically form two distinct germplasm pools that could be employed to enhance finger millet germplasm in both India and Africa.…”

Section: Discussionsupporting

confidence: 67%

“…EK6 and IE 2595 provide the first genotypic evidence that unambiguously demonstrates that gene flow between subsp. coracana and africana occurs naturally where both species are sympatric [3]. Neither of these accessions are first generation hybrids, indicating that some hybrid derivatives are competitive and can persist in the wild.…”

Section: Population Structurementioning

confidence: 96%

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Population Structure and Diversity in Finger Millet (Eleusine coracana) Germplasm

Dida

Wanyera

Dunn³

et al. 2008

Tropical Plant Biol.

140

103

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A genotypic analysis of 79 finger millet accessions (E. coracana subsp. coracana) from 11 African and five Asian countries, plus 14 wild E. coracana subsp. africana lines collected in Uganda and Kenya was conducted with 45 SSR markers distributed across the finger millet genome. Phylogenetic and population structure analyses showed that the E. coracana germplasm formed three largely distinct subpopulations, representing subsp. africana, subsp. coracana originating from Africa and subsp. coracana originating from Asia. A few lines showed admixture between the African and Asian cultivated germplasm pools and were the result of either targeted or accidental intercrossing. Evidence of gene flow was also seen between the African wild and cultivated subpopulations, indicating that hybridizations among subspecies occur naturally where both species are sympatric. The genotyping, combined with phylogenetic and population structure analyses proved to be very powerful in predicting the origin of breeding materials. The genotypic study was complemented by a phenotypic evaluation. The wild and cultivated accessions differed by a range of domesticationrelated characters, such as tiller number, plant height, peduncle length, seed color and grain yield. Significant differences in plant architecture and yield were also identified between the Asian and African subpopulations. The observed population structure within cultivated finger millet is consistent with the theory that, after the introduction of finger millet from Africa into India via the trade routes some 3000 years ago, the two germplasm pools remained largely isolated until recent times. The significantly lower diversity present within the Asian subpopulation also suggests that it arose from a relatively small number of founder plants.

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Section: Discussionsupporting

confidence: 67%

Section: Population Structurementioning

confidence: 96%

Population Structure and Diversity in Finger Millet (Eleusine coracana) Germplasm

Dida

Wanyera

Dunn³

et al. 2008

Tropical Plant Biol.

140

103

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“…Of the five races of finger millet genetic resources (de Wet et al 1984), the germplasm is most represented by race vulgaris (61.16%), followed by plana (16.99%), compacta (11.40%), elongata (8.55%), and race africana (1.90%). The first four races are cultivated whereas the fifth race, africana is a wild form.…”

Section: Resultsmentioning

confidence: 99%

Development of Core Subset of Finger Millet Germplasm Using Geographical Origin and Data on 14 Quantitative Traits

Upadhyaya

Gowda

Pundir

et al. 2006

Genet Resour Crop Evol

126

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Finger millet [Eleusine coracana (L.) Gaertn.] is an important cereal food crop in Africa and South Asia. It is a hardy crop that can be grown in very diverse environments from almost at sea level to about 2400 m.a.s.l. Finger millet has an excellent food value as its seeds contain protein ranging from 7 to 14% and are particularly rich in methionine amino acid, iron, and calcium. Despite all these merits, this crop has been neglected from the main stream of crop improvement research. One of the means to boost its production and productivity is to enhance utilization of finger millet germplasm to breed superior varieties. Keeping this objective in view, a core subset of finger millet germplasm (622 accessions) based on origin and data on 14 quantitative traits was developed from the entire global collection of 5940 accessions held in the genebank at ICRISAT, Patancheru, India. The comparison of means, variances, frequency distribution, Shannon-Weaver diversity index (H¢) and phenotypic correlations indicated that the core subset represents the entire collection. These tests indicated that sampling was optimal and the diversity has been captured very well in the core subset. The correlation analysis indicated that panicle exsertion and longest finger length could be given lower priority in the future germplasm evaluation work of finger millet.

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“…These cultivated races are further divided into subraces; laxa, reclusa, and sparsa in race elongata; seriata, confundere, and grandigluma in race plana; and liliacea, stellata, incurvata, and digitata in race vulgaris. The race compacta has no subraces (de Wet et al, 1984;Prasada Rao and de Wet, 1997).…”

Section: Finger Milletmentioning

confidence: 99%

Finger and foxtail millets

Vetriventhan

Upadhyaya

Dwivedi

et al. 2016

Genetic and Genomic Resources for Grain Cereals Improvement

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Systematics and Evolution of Eleusine Coracana (Gramineae)

Cited by 49 publications

References 16 publications

Population Structure and Diversity in Finger Millet (Eleusine coracana) Germplasm

Population Structure and Diversity in Finger Millet (Eleusine coracana) Germplasm

Development of Core Subset of Finger Millet Germplasm Using Geographical Origin and Data on 14 Quantitative Traits

Finger and foxtail millets

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