Genetic control of domestication traits in pearl millet (Pennisetum glaucum L., Poaceae)

Poncet, Valérie; Lamy, Françoise; Devos, Katrien M.; Gale, M. D.; Sarr, Amadou; Robert, Thierry

doi:10.1007/s001220050020

Cited by 137 publications

(101 citation statements)

References 46 publications

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“…A similar result has been reported in pearl millet (P. glaucum) (42), a species more closely related to foxtail millet (43) than either is to maize. Grass taxonomists have also frequently noted a lack of correlation between the presence of tillers and axillary branches (44).…”

Section: Discussionsupporting

confidence: 85%

Genetic control of branching in foxtail millet

Doust

Devos

Gadberry

et al. 2004

Proc. Natl. Acad. Sci. U.S.A.

141

104

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Reduction in vegetative branching is commonplace when crops are domesticated from their wild progenitors. We have identified genetic loci responsible for these changes in foxtail millet (Setaria italica), a crop closely related to maize but whose genetics are little known. Quantitative trait locus (QTL) analysis and comparative genomics reveal that basal branching (tillering) and axillary branching are partially controlled by separate loci, and that the orthologue of teosinte branched1, the major gene controlling branching phenotype in maize, has only a minor and variable effect. We identify other candidate genes for control of branching, including a number of hormone biosynthesis pathway genes. These results suggest that similar phenotypic effects may not be produced by orthologous loci, even in closely related species, and that results from well characterized model systems such as maize must be reviewed critically before being applied to other species.

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Section: Discussionsupporting

confidence: 85%

Genetic control of branching in foxtail millet

Doust

Devos

Gadberry

et al. 2004

Proc. Natl. Acad. Sci. U.S.A.

141

104

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“…These genes are the basis for the "domestication syndrome" 4 . The same situation is also found in the Graminaceous crops such as rice 26 , maize 17 and pearl millet 18 .…”

Section: Comparison Of Qtls For Domestication Within Tribe Phaseoleaesupporting

confidence: 61%

Comparison of the Pattern of Crop Domestication between Two Asian Beans, Azuki Bean (Vigna angularis) and Rice Bean (V. umbellata)

Isemura

Tomooka

Kaga

et al. 2011

JARQ

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Azuki bean (Vigna angularis) and rice bean (V. umbellata) are locally important legumes that were domesticated in Asia. They are genetically closely related and therefore suitable for comparative genomics studies. The center of genetic diversity of azuki bean is in East Asia and it was most probably domesticated in Japan based on the archaeobotanical and genetic evidences. The center of genetic diversity and domestication of rice bean is in Southeast Asia. The domestication of rice bean involved fewer gene (QTLs) mutations with larger genetic effects than azuki bean. The distribution of major domestication genes in rice bean is limited to two linkage groups compared with five in azuki bean. In azuki bean the major domestication genes are abundantly detected on linkage group 9 (LG9), while in rice bean they were found on LG4. Surprisingly, many species specific QTLs were detected such as azuki bean's erect stem QTL on LG9 and rice bean's seed size increase QTL on LG4. Such species specific QTLs suggest the possibility that rice bean and azuki bean can provide novel genes for breeding. Comparative genomics among closely related species is an efficient way to find novel genes for breeding.

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“…Evolutionary studies of crop species are crucial for several applications; indeed, the knowledge relating to the level and structure of genetic diversity of crop plants and their wild relatives is the starting point of any breeding program (44)(45)(46)(47)(48)(49)(50)(51)(52). Our study indicates that, to explore new genetic diversity that is not incorporated into the current domesticated germplasm and consider this high genetic diversity in the Mesoamerican accessions that is not present in the Andean gene pool, it is the wild Mesoamerican germplasm that should be used in breeding programs, because it has potential for the release of new cultivars.…”

Section: Discussionmentioning

confidence: 99%

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

Bitocchi

Nanni

Bellucci

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

327

299

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Knowledge about the origins and evolution of crop species represents an important prerequisite for efficient conservation and use of existing plant materials. This study was designed to solve the ongoing debate on the origins of the common bean by investigating the nucleotide diversity at five gene loci of a large sample that represents the entire geographical distribution of the wild forms of this species. Our data clearly indicate a Mesoamerican origin of the common bean. They also strongly support the occurrence of a bottleneck during the formation of the Andean gene pool that predates the domestication, which was suggested by recent studies based on multilocus molecular markers. Furthermore, a remarkable result was the genetic structure that was seen for the Mesoamerican accessions, with the identification of four different genetic groups that have different relationships with the sets of wild accessions from the Andes and northern Peru–Ecuador. This finding implies that both of the gene pools from South America originated through different migration events from the Mesoamerican populations that were characteristic of central Mexico

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Genetic control of domestication traits in pearl millet (Pennisetum glaucum L., Poaceae)

Cited by 137 publications

References 46 publications

Genetic control of branching in foxtail millet

Genetic control of branching in foxtail millet

Comparison of the Pattern of Crop Domestication between Two Asian Beans, Azuki Bean (Vigna angularis) and Rice Bean (V. umbellata)

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

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