December 27, 2019   |   by admin

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.

Author: Dutaur Kamuro
Country: Montenegro
Language: English (Spanish)
Genre: Love
Published (Last): 4 June 2018
Pages: 487
PDF File Size: 20.36 Mb
ePub File Size: 13.45 Mb
ISBN: 462-1-75365-617-9
Downloads: 71913
Price: Free* [*Free Regsitration Required]
Uploader: JoJogal

For male and hermaphrodite flowers the number of filaments, anthers and pollen count was determined.

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

The Supplementary Material for this article can be found online at: Some of the individuals were carrying pure pollen loads of J. However, of the 32 species of potential pollinators, not all were efficient as pollinators of J.

One Guatemalan accession of the eight Mesoamerican accessions that genetically close to African and Asian groups see above and Supplementary Figure 2 was not included in the tree because of its admixed membership.

Introduction Jatropha curcas L. However, it has been reported that these bees can temporarily present an oligolectic strategy, taking advantage of a single source of food, as it occurs with Cocos nucifera L.

However, in this study with J. Heller Heller J.

Therefore, it is necessary to perform a study involving more individuals to confirm the absence of gynomonoecious. We further narrowed down the center of diversity to central Chiapas. Details characters remaining. In contrast, Toral et al. Regarding the phenomenon of apomixis, we found a very low rate 2.


Ciapas diversity of Jatropha curcas L. Diversity and genetic parameter estimates for yield and its components in Jatropha curcas L. Introduction Jatropha curcas L. Accessions of Jatropha curcas Cuurcas.

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

The multivariate analysis registered that J. Inter and intra-population variability of Jatropha curcas L. Finally, the last group consists of three gynoecious plants, i. Robertson 1 PI 0. Meanwhile, populations of Guatemala, Frontera, Soconusco and Guerrero were separated from the rest and between themselves.

Bees jatopha generally small to medium size 5—10 mm and particularly the native stingless bees were the most diverse, abundant, and with morphological characteristics correspondent to the floral syndromes of J. The activity of insects visiting the flowers of J. Moreover, the pollen adhered to the legs of the insects was identified by microscopy.

There was a problem providing the content you requested

Nonetheless, many studies about J. These updates will appear in your home dashboard each time you visit PeerJ.

This breeding bottleneck represents a typical example of the founder effect and is probably the major cause of the failure of Jatropha breeding in African and Asian countries. This could explain the low genetic diversity in Asian germplasm. These resulted in lower inbreeding coefficients F IS in central Chiapas than in most of the peripheral areas of Chiapas, other Mexican states, and Guatemala Supplementary Table 1.

Milligan Molecular ecology Graph of centroids of the eight populations of Jatropha curcas L. Interestingly, the two Veracruz accessions that carry all the eight retrotransposons were collected at Soledad de Doblado and Entrada a Independencia of Veracruz, both of which are within 40 and km from the Port of Veracruz, respectively.


To our knowledge, no sexual types and floral traits research exists in the center of origin. 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 applied.

The most abundant insects were Hymenoptera and Diptera, which is consistent with some previous studies in other areas Luo et al. Javascript is disabled in your browser. They are measures of the extent of genetic variation in a population.

The two Veracruz accessions also belong to Group B. These data were processed by a multivariate discriminant analysis, where the most informative characters were identified and populations were grouped. Breeding, Chiapas, Jaropha, Mexico, Multivariate analysis. Therefore, it is probable that the indigenous people of Mexico selected and carried a limited genotype of Jatropha seeds or cuttings in central Chiapas and transported them to the area close to the Port of Veracruz, to be the ancestor of two Veracruz accessions.

The male-specific region of the human Y chromosome is a mosaic of discrete sequence clases. Biomass Bioenergy 35 — Statistical analysis In order to minimize differences observed in traits, our data were coded as shown in Table S2.