+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Crop/weed gene flow:Chenopodium quinoa Willd. andC. berlandieri Moq

Crop/weed gene flow:Chenopodium quinoa Willd. andC. berlandieri Moq

Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 86(5): 642-648

Introduction of the Andean grain chenopod (Chenopodium quinoa) into North America placed this crop within the distributional range of a related wild species,C. berlandieri. This wild species, native to the North American flora, is cross-compatible withC. Quinoa. Isozyme analysis of progeny fromC. berlandieri plants growing within and at the periphery of theC. Quinoa fields, combined with fertility assessment and phenetic comparison among putative hybrids and parental types, indicates that over 30% of progeny from wild plants growing as weeds withC. quinoa in 1987 were crop/weed hybrids. This high incidence of interspecific gene flow from crop to weed appears to be the result of asymmetric pollen flow to free-living plants from high-density cultivated populations. The observed level of crop/weed hybridization, combined with heterosis and partial fertility of F1 crop/weed hybrids, suggests that repeated annual cycles ofC. quinoa cultivation within the North American range ofC. berlandieri could produce introgressive change among sympatric wild populations. In terms of risk assessment for biotechnology, these results suggest that the breeding system may not provide an accurate indication of the potential for genetic interaction among predominately self-pollinating grain crops and their free-living relatives.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 052388426

Download citation: RISBibTeXText

PMID: 24193715

DOI: 10.1007/bf00838721

Related references

Crop/weed gene flow: Chenopodium quinoa Willd. and Chenopodium berlandieri Moq. Theoretical and Applied Genetics 86(5): 642-648, 1993

Chenopodium quinoa chenopodium berlandieri crop weed gene flow. American Journal of Botany 78(6 Suppl.): 229-230, 1991

Quinoa (Chenopodium quinoa willd) an important Andean food crop. Archivos Latinoamericanos de Nutricion 42(3): 232-241, 1992

Genetic resources and breeding of the Andean grain crop quinoa (Chenopodium quinoa Willd.). Plant Genetic Resources Newsletter (130): 54-61, 2002

Quinoa (Chenopodium quinoa Willd.), a potential new crop for Pakistan. Prospects for saline agriculture: 247-249, 2002

The pattern of genetic diversity in the Andean grain crop quinoa (Chenopodium quinoa Willd). I. Associations between characteristics. Euphytica 41(1-2): 147-162, 1989

The pattern of genetic diversity in the Andean grain crop quinoa (Chenopodium quinoa Willd). II. Multivariate methods. Euphytica 41(1-2): 135-145, 1989

Crop water use indicators to quantify the flexible phenology of quinoa (Chenopodium quinoa Willd.) in response to drought stress. Field Crops Research 108(2): 150-156, 2008

Quinoa (Chenopodium quinoa Willd.): a potential new crop. Biotechnology in agriculture and forestry 6 Crops II: 386-404, 1988

Evaluation of the development and yielding potential of Chenopodium quinoa Willd under the climatic conditions of Europe - Part One Accomodation of Chenopodium quinoa Willd to different conditions. Acta Agrobotanica 61(1): 179-184, 2008

Allotetraploid segregation for single-gene morphological characters in quinoa (Chenopodium quinoa Willd.). Euphytica 116(1): 11-16, 2000

Characterization of Salt Overly Sensitive 1 (SOS1) gene homoeologs in quinoa (Chenopodium quinoa Willd.). Genome 52(7): 647-657, 2009

Acclimatization of quinoa (Chenopodium quinoa, Willd) and canihua (Chenopodium pallidicaule, Aellen) to Finland. Annales agriculturae fenniae 3(3): 135-144, 1984

Variation in salinity tolerance of four lowland genotypes of quinoa (Chenopodium quinoa Willd.) as assessed by growth, physiological traits, and sodium transporter gene expression. Plant Physiology and Biochemistry 49(11): 1333-1341, 2011