Jatropha curcas L. (Jatropha), a shrub species of the family We found that central Chiapas of Mexico possesses the most diverse genetic. Classification of accessions of Jatropha curcas L. from the Jatropha Germplasm Bank of the Universidad Autónoma de Chiapas, based on. To investigate the genetic diversity and structure of Jatropha curcas L. oilseed plant, in this study, native populations from Chiapas, Mexico.

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The Diptera foraged exclusively nectar, while bees collected nectar and pollen. Floral phenology Flowering and fruiting dynamics were studied in 10 plants every 14 days during one year. In both analyses two approaches were followed: No use, distribution or reproduction is permitted which does not chiapae with these terms.

The genetic diversity of J. Moreover, the pollen adhered to the legs of the insects was identified by microscopy. Crucas production of Jatropha seeds can ensure a stable and enough supply of biofuel, which will help in the battle against the climate change.

Genetic Tracing of Jatropha curcas L. from Its Mesoamerican Origin to the World

Type of plant Accessions n Description Monoecious 95 Plants with male and females flowers in the same inflorescence Dioecious Gynoecious 3 Plants with only female flowers Androecious 2 Plants with only male flowers Hermaphrodites Andromonoecious 1 Plants with male and hermaphrodite flowers Androgynomonoecious 2 Plants that has mostly male flowers, with a few female and hermaphrodite flowers. Support Center Support Center. African Journal of Agricultural Research.

Phenotypic diversity of Jatropha curcas L. Heteromorphic sex chromosomes are widely distributed in higher animals but in contrast to the study of the origin and evolution of X and Y chromosomes in humans Jatrophq et al. Coding floral characters of Jatropha curcas L. All of the eight RBIP markers showed the intraspecific polymorphism. Conclusions Jatropha curcas L.


Genetic variation in Mexican Jatropha curcas L. We would like to thank Dr.

Sex expression and floral diversity in Jatropha curcas: a population study in its center of origin

The genetic constitutions of all the Mesoamerican accessions were examined by structure analysis. They also found that the two principal components together explained You can also choose to receive updates via daily or weekly email digests. It is estimated that animals sex chromosomes appeared — million years ago Charlesworth, Many factors affect the chiapsa of flowering, like genetic variability, nutrients, phyto-hormones and environmental conditions.

Insect flower visitors and pollinators To determine insect pollinators and visitors, observations were made on ten inflorescences from independent plants, from — h at intervals of 10 min. The highest genetic variation and the lowest F IS among the three groups were observed in Group A Supplementary Table 5which was as chiapsa from the results of the previous section.

Over SSR markers were developed by designing primer pairs surrounding SSR sequences identified by the genomic database of Asian accessions based on our whole genome sequencing project Sato et al. The last group was formed from two androecious accessions plantsi. The mean values and SDs of the accessions from central Chiapas were higher than those from the peripheral areas of Jatroph and other Mexican states Supplementary Table 4.

Genetic divergence of Jatropha in Mesoamerica. Frontera and Soconusco populations showed a marked differentiation between them and with respect to other populations.

Statistical analysis To understand differences between visitor groups in the frequency and time of visit to male and female flowers, the Chi-square test was natropha. The stars represent the sampling sites of three accessions that share the same ancestor of African and Asian Jatropha.

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Yasuhisa Yushio, and Mr. This means that the study of the diversity of J. The main activity peaks coincided with increased secretion of female flower nectar during daylight — h. The third group was the largest and consisted of 39 accessions of all populations. The Depression, which extends over five regions in central Chiapas, is composed of hot and semiarid lowlands dominated by deciduous shrubs. Fences and medicines are the likely reasons why the Portuguese shipped the plant to Africa and Asia Sabandar et al.


Physic Nut Jatropha curcas L.

Biomass Bioenergy 35 — Mesoamerica, especially Mexico, has been shown to possess high genetic variations of Jatropha and was assumed to be its place of origin Makkar and Becker, ; Dias et al. Flowering of Jatropha curcas in its center of origin Relationship between the proportion of flowering accessions of Jatropha curcas L.

Thus, we determined sex expression and floral morphology in J. Group I comprises all the African and Asian accessions and eight Mesoamerican accessions: The campanian-maastrichtian rudist bivalves succession in the Curcss Central Depression, Mexico. It is sandwiched by the northern highlands, central plateau and the southern Sierra Madre Mountains.

Genetic Diversity in Jatropha curcas Populations in the State of Chiapas , Mexico

Some of the individuals were carrying pure pollen loads of J. Isolated geographical and climate situations of the Chiapas Central Depression may have favored the evolution of drought-adapted plant species.

Published online Sep 7. Cluster analysis of morphological characters of flowers Two analyses of hierarchical ascendant classification dendrogram or cluster analysis were undertaken: All of them were expected to have retrotransposed more recently than other members.