Assessment of Genetic Diversity and the Population Structure of Species from the Species Complex Causing Stalk Rot of Maize.

stalk rot (FSR), caused by the species complex, is an economic threat to maize cultivation all over the world. We investigated the population structure and genetic diversity of species obtained from five major maize-growing regions in India. The locus was used for phylogenetic analysis of geographically distinct isolates of , , , , and causing FSR.

Morphological characterization, pathogenicity screening, and molecular identification of spp. isolates causing post-flowering stalk rot in maize.

Post flowering stalk rot (PFSR) of maize caused by the species complex is a serious threat to maize production worldwide. The identification of species causing PFSR based on morphology traditionally relies on a small set of phenomic characteristics with only minor morphological variations among distinct species. Seventy-one isolates were collected from 40 sites in five agro-climatic zones of India to assess the diversity of spp.

In vitro production of doubled haploid plants in Camellia spp. and assessment of homozygosity using microsatellite markers.

In this report, in vitro doubled haploid (DH) plants were established in two tea (Camellia spp) cultivars, TV21 (Assam Type) and TV19 (Cambod Type). Androgenic globular stage haploid embryos, obtained via callusing from microspores at an early-to-late uninucleate stage in anther cultures, were diploidized by colchicine treatments at varying concentrations and durations under dark incubation at 25 ± 2 °C temperature. Thereafter, treated embryos were transferred to development medium, Murashige and Skoog (MS) medium supplemented with 6-benzylaminopurine (BAP; 1 μM) + gibberellic acid (GA; 0.