Bean common mosaic virus and Bean common mosaic necrosis virus in Mexico

Abstract

A survey was performed in Mexico to study the distribution of Bean common mosaic virus (BCMV) and Bean common mosaic necrosis virus (BCMNV) using a set of primers directed to the coat protein gene (CP) that were designed to detect and characterize the two viral species. Both viral species were present in different locations in the country. BCMV was predominant in the central states of the country, whereas BCMNV proliferated toward the eastern tropical states. The alignment of nine nucleotide sequences for each viral species at the amino region of the CP gene confirmed the identities of the viruses and set the basis to assign them tentatively to pathogroups I, II, and VI.

Markers linked to the bc-3 gene conditioning resistance to bean common mosaic potyviruses in common bean

“…Both viruses are seedborne and transmitted by several aphid species in a non-persistent manner (Drijfhout, 1978). These viruses have been reported in common bean in many parts of the world including Europe (Drijfhout, 1978;Sáiz et al, 1995), U.S. (Kelly et al, 1983;Provvidenti et al, 1984), Canada (Tu, 1986), Mexico (Flores-Estévez et al, 2003) and Africa (Silbernagel et al, 1986;Spence & Walkey, 1995;Sengooba et al, 1997;Njau & Lyimo, 2000). BCMNV likely evolved more recently in the African continent (Spence & Walkey, 1995) and recombination has been observed between strains of BCMV and BCMNV (Silbernagel et al, 2001).…”

Bean Common Mosaic Virus and Bean Common Mosaic Necrosis Virus

“…In plants of susceptible bean lines, BCMV and BCMNV can have very similar symptoms that include dwarfing, mosaic, leaf curling, and chlorosis (Flores-Estévez et al, 2003) (Fig. 3).…”

“…Table 1 lists the symptoms observed with 10 bean cultivars that were used to distinguish the seven pathotypes of BCMV and BCMNV. However, modern techniques for strain differentiation no longer solely rely on differential symptoms but instead utilize multiple properties including CP or other gene and amino acid sequences (Flores-Estévez et al, 2003;Xu & Hampton, 1996) (see Section 2).…”

“…However, BCMNV has occasionally been transported to other parts of the world through contaminated bean seed . Indeed, the high efficiency of seed transmission BCMV and BCMNV (see Section 7) has aided the long-distance dissemination of both viruses to many regions including: Europe (Drijfhout et al, 1978;Pasev et al, 2014;Sáiz et al, 1995), North America (Flores-Estévez et al, 2003;Kelly et al, 1983;Provvidenti et al, 1984;Tu, 1986), South America (Melgarejo et al, 2007), as well as throughout Africa itself (Njau & Lyimo, 2000;Sengooba et al, 1997;Silbernagel et al, 1986;Spence & Walkey, 1995).…”

Detección de líneas de frijol negro con adaptación en el trópico húmedo del sureste de México

“…Added to this, in the vast majority of commercial plantings are used native genotypes of low yield and with very specific adaptation, thus as improved varieties that were generated many years ago as Black Jamapa, released in 1958 by the National Forest Research Institute , Agriculture and Livestock (INIFAP) , which is sown due to its grain type is highly appreciated by consumers in the tropics, but is susceptible to moisture deficiencies and major fungal diseases as rust (Uromyces appendiculatus var. appendiculatus Unger) and angular leaf spot (Phaeoisariopsis griseola Ferraris) and virus as the golden yellow mosaic virus (BGYMV) and bean common mosaic (BCMV and BCMNV), present in the region Flores-Estévez et al, 2003;Villar et al, 2003;López et al, 2006;Lepe-Soltero et al, 2012).…”