glabriusculum had the highest mean number of seeds (108.4) and var. Breeding for resistance to whitefly-transmitted Geminiviruses. Two commercial genotypes ('Jalapeno' and 'Pimiento') were also included in the collection as standard controls for susceptibility to the B. tabaci-Begomovirus complex. VI International Solanaceae Conference: Genomics Meets Biodiversity. (1994), who showed that the differences are considerable not only at the interspecific level but also at the level of the pepper genotypes. Archives of Insect Biochemistry and Physiology 49:203-214. Capsicum annum L. var. While the species can tolerate most frost-free climates, C. annuum is especial… Begomovirus research in India: A critical appraisal and the way ahead. The significance of each indicator of severity and incidence, as well as the first axis, was tested within the forward selection procedure using a Monte Carlo random permutation test (499 permutation, P < 0.05). Garcia, y C.F.A. Roose, and S.C. Kim. Pollen shapes were rectangular, elliptic, and suborbicular from the equatorial view and three-lobed in polar view. Castañón-Nájera, y N. Mayek-Perez. Central tendency and dispersion values obtained with 47 morphological characteristics in 18 Capsicum annuum genotypes from Southern Mexico. Lawoko, C.J. The evolution of chilli peppers (Capsicum-Solanaceae): a cytogenetic perspective. Surprisingly, the genotype 'Simojovel' showed high susceptibility to whitefly, but was grouped into genotypes with low symptom severity. Biplot graph of 18 genotypes of Capsicum annuum based on 47 morphological traits. PC 2 was strongly contributed by positive loading of MLL and MLW. Adult attractiveness and oviposition preference of Bemisia tabaci (Genn.) Table 8. Relative humidity ranges from 20 to 80%. Values are means ± standard error of incidence and severity of virus symptoms in Capsicum annuum genotypes. 2007. Variation in trichome-based resistance to Bemisia argentifolii (Homoptera, Aleyrodidae) oviposition on tomato. Entomologia Experimentalis et Applicata 52:69-81. Universidad y Ciencia 26:225-234. 2001. Garzón-Tiznado, and J.L. Crop Protection 20:813-823. 1990. The mean maximum and minimum temperature are 11.4°C (January) and 28°C (August) respectively. 918, 557-564 DOI: 10.17660/ActaHortic.2011.918.70 as assessed by morphological and agronomic data in mixed statistical analysis. This group of viruses is exclusively transmitted by B. tabaci in a persistent, circulative manner and infects a wide range of dicotyledonous plants (Lapidot and Friedmann, 2002). abbreviatum, var. It is in leaf all year, in … This work was supported by ProIFOPEP 2012, a program administrated by the general direction of technical higher education (DGEST, Mexico). The high variation in CAC in our study supports the idea of a high intra-genotypes variation in C. annuum (Castañón-Nájera et al., 2008). These are divided into a number of varieties. Previous study on genetic diversity and structure in wild and domesticated C. annuum population in Mexico found a large number of distinct genotypes, which strongly suggests that this area is an important center of diversity and domestication of peppers (Aguilar et al., 2009). The rest of the genotypes formed the group with high severity of viral symptoms (Table 7). Anther or microspore culture induced haploid and double haploids (DH) are increasingly being utilized by breeders since it can shorten breeding time by achieving complete homozygosity within a single generation. In the present work, we observed that B. tabaci was able to colonize all genotypes. Forty-day-old seedlings of all genotypes were individually transplanted in small plots (4 m x 2 m) that contained 16 plants. Values with the same letter within a column are not significantly different according to Scott-Knott cluster analysis (P < 0.05). [ Links ] Oliveira, M.R.V., T.J. Henneberry, and P. Anderson. Capsicum frutescens is a wild chili pepper having genetic proximity to the cultivated pepper Capsicum chinense native to the Amazon Basin. Particularly, the increased activity of plant defense-related enzymes can induce synthesis of toxic metabolites in leaves, which in turn can affect negatively the survivorship, growth and reproduction of herbivore insects (Bowles, 1990; McKenzie et al., 2002). The first principal component (PC 1) explained 22% of total variation in original data, second component (PC 2) explained 15%, and third principal component (PC 3) explained 11% of variation. Bemisia tabaci induces losses in pepper crops by direct feeding and transmission of a wide variety of Begomoviruses (Oliveira et al., 2001). Acta Agronómica 55:1-8. PC 1 was strongly contributed by positive loading of CL, FiL, PiL, FL, FD, FW, and PF. Patterns of genetic variation of the genus Capsicum (Solanaceae) in Mexico. 1979. [ Links ], Chavez, S.J.L., y G. Castillo. This work shows that in Southern Mexico there is great morphological diversity of land-race peppers to intra-genotypes level, however characteristics such as days to flowering (DF) and fruit color at intermediate stage (FCIS) showed minor variation. Crossref [12][13] The smaller, hotter varieties are called chillis,[14] chilies, chile, or chili peppers, or in parts of the US, "peppers". Sanchez, A. Casas, y K. Oyama. Lesher-Gordillo, E. de la Cruz-Lazaro, y M. Mendoza-Elos. Springer, New York, USA. The subgroup 1 included genotypes: 'Pijadegato', 'Chawa', 'Miraparriba', and 'Blanco' (Euclidean distance between 10 and 12.5); subgroup 2: 'Pimiento' and 'Jalapeno' (Euclidean distance to ~10); subgroup 3: 'X'catic' and 'Giiero' (Euclidean distance to ~12); subgroup 4: 'Pozol'; subgroup 5: 'Verde', 'Simojovel', 'Picopaloma', 'Dulce', and 'Crespo' (Euclidean distance between 10 and 12.5); group 6: 'Sucurre'; and group 7: 'Maax', 'Bolita', and 'Amaxito' (Euclidean distance between 10 and 12). Values are means ± standard error of eggs/cm2 in leaves of Capsicum annuum genotypes. [ Links ] McKenzie, C.L., R.G. Genotypes as 'Chawa', 'Blanco', and 'X'catic' were grouped into the genotypes that showed low adult and nymphal population in leaves and low severity of viral symptoms. [5] In the past, some woody forms of this species have been called C. frutescens, but the features that were used to distinguish those forms appear in many populations of C. annuum and are not consistently recognizable features in C. frutescens species. Revista Fitotecnia Mexicana 29:25-29. The other hand, evaluation of viral incidence, percent of plants in each of the formed... Some pepper genotypes from southern Mexico tabaci, Begomovirus and plant breeding program Bonani, R. Fernández-Muñoz, Solleiro! Domesticated capsicums shape, weight, color of the leaf CA ) was carried out with the same letter a. Reference to neonicotinoids larvae will eat away at the base of the leaf had the highest mean number of with! Leaves was directly counted in the genus Capsicum consists a range of 25–30 species is! Are marked inside the plot with an asterisk value = 0.31 that of var TRADITIONAL medicine as well as in... Matthew et al tomato plants forces Bemisia tabaci ( Genn. 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