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Trends and drivers of on-farm conservation of the root legume ahipa (Pachyrhizus ahipa) in Bolivia over the period 1994/96–2012
Springer Science and Business Media LLC - Tập 65 - Trang 449-469 - 2017
Juan Pablo Rodríguez, Bo Ørting, Christian Andreasen, Sven-Erik Jacobsen, Marten Sørensen
The leguminous Andean root crop ahipa has become scarce and the current status of in situ conservation in Bolivia is concerning. Agro-biodiversity changes affect the use, conservation and socio-economic trends for ahipa (Pachyrhizus ahipa) and to substantiate this, a comparison of two cropping periods were made. Aspects of root production and the shift from cultivation of ahipa to cash crops such ... hiện toàn bộ
Allozyme Variation Among Some Pearl Millet (Pennisetum glaucum L.) Cultivars Collected from Tunisia and West Africa
Springer Science and Business Media LLC - Tập 52 - Trang 1087-1097 - 2005
Oumar Ibrahima, Farhat Chibani, Sawsen A. Oran, Mohamed Boussaid, Yannis Karamanos, Aly Raies
Allozyme variation was assessed in a collection of pearl millet cultivars derived from three different regions of traditional cultivation of this cereal in Tunisia and West African countries. Using starch gel electrophoresis, 11 loci corresponding to seven enzyme staining systems were identified. Important within-cultivar genetic diversity was detected. Genetic diversity within Tunisian cultivars ... hiện toàn bộ
Vulnerability of coffee (Coffea spp.) genetic resources in the United States
Springer Science and Business Media LLC - - 2021
Sarada Krishnan, Tracie K. Matsumoto, Chifumi Nagai, James Falconer, Suzanne Shriner, Jennifer Long, Juan F. Medrano, Fernando E. Vega
Gene expression variation in grapevine species Vitis vinifera L. and Vitis aestivalis Michx.
Springer Science and Business Media LLC - Tập 54 - Trang 1541-1553 - 2007
Raymond W. M. Fung, Wenping Qiu, Yingcai Su, Daniel P. Schachtman, Kari Huppert, Csaba Fekete, László G. Kovács
Comparative microarray (Vitis GeneChip) analysis in young leaves revealed considerable variation in gene expression between Vitis vinifera L. and Vitis aestivalis Michx. Approximately 12% of the genes were differentially expressed in the two grapevine species (P < 0.001). Over 200 probe sets were identified which consistently detected transcripts in one grapevine species, but not in the other. We ... hiện toàn bộ
Advantages of Wild Diploid Solanum Species Over Cultivated Diploid Relatives in Potato Breeding Programs
Springer Science and Business Media LLC - Tập 53 - Trang 669-674 - 2005
Shelley H. Jansky, Stanley J. Peloquin
For breeding programs of the tetraploid potato (Solanum tuberosum), both wild and cultivated diploid relatives are valuable sources of genetic diversity. While both types of germplasm are used in breeding programs, there are several advantages to using wild relatives. Diploid relatives are typically crossed with haploids (2n = 2x = 24) from tetraploid S. tuberosum to improve daylength adaptation. ... hiện toàn bộ
Isozyme studies of genetic diversity and evolution in Hippophae
Springer Science and Business Media LLC - Tập 40 - Trang 153-164 - 1993
Yingmou Yao, Peter M.A. Tigerstedt
To provide information on the genetic variation, differentiation and evolution in Hippophae seed samples of 25 populations from China, Finland and Russia were electrophoretically analyzed. Of six loci investigated, four were good genetic markers for identifying species and subspecies. The percentages of polymorphic loci per population were 40.3% and 62.5% at 0.95 and 0.99 polymorphic criteria resp... hiện toàn bộ
Diversity Analysis of Garlic (Allium sativum L.) Germplasms Available in Nepal Based on Morphological Characters
Springer Science and Business Media LLC - Tập 53 - Trang 205-212 - 2006
D. R. Panthee, R. B. KC, H. N. Regmi, P. P. Subedi, S. Bhattarai, J. Dhakal
A total of 179 garlic (Allium sativum L.) accessions were collected from various parts of Nepal in 2000. Each accession was planted in each of a plot of 2.25 m2 at the Institute of Agriculture and Animal Science (IAAS) Horticulture farm (225 m asl) and at the Agriculture Research Station, Dailekh (1400 m asl) of Nepal Agriculture Research Council (NARC) in the first week of November 2000. All acce... hiện toàn bộ
Ethnobotanical, morphological, phytochemical and molecular evidence for the incipient domestication of Epazote (Chenopodium ambrosioides L.: Chenopodiaceae) in a semi-arid region of Mexico
Springer Science and Business Media LLC - Tập 59 - Trang 557-573 - 2011
Isabelle Blanckaert, Martín Paredes-Flores, Francisco J. Espinosa-García, Daniel Piñero, Rafael Lira
Use and management of wild and weedy species may involve artificial selection, which can determine morphological, physiological, reproductive, and genetic divergences between wild and managed populations, resulting in the initial or incipient phases of plant domestication. In this study we combined ethnobotanical, morphological, phytochemical and genetic information for analyzing differences betwe... hiện toàn bộ
Low levels of genetic diversity detected by RAPD analysis in geographically distinct accessions of Bacopa monnieri
Springer Science and Business Media LLC - Tập 48 Số 6 - Trang 555-558 - 2001
Darokar, Mahendra P., Khanuja, Suman P. S., Kumar Shasany, Ajit, Kumar, Sushil
Brahmi (Bacopa monnieri) is atraditional Indian medicinal plant known for its natural nootropicaction of saponins present in large amount in its shoots. Acollection of 24 B.monnieri accessions from differentagro-climatic zones of India and an introduction from Malaysiamaintained in the field genebank at CIMAP was analysed for RAPDvariation. Among the 40 random primers tested, 29 primers generatedo... hiện toàn bộ
The development of a new approach for establishing a core collection using multivariate analyses with tulip as case
Springer Science and Business Media LLC - Tập 47 - Trang 403-416 - 2000
L.W.D. van Raamsdonk, J. Wijnker
A methodology is developed for the establishment of a core collection based on phenotypic data. A case is worked out for the tulip cultivar collection of the Hortus Bulborum, consisting of approximately 1000 cultivars. The methodology is based on cluster analysis of phenetic characters, selection of cultivars from the resulting clusters according to a combination of the proportional and genetic di... hiện toàn bộ
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