Variability studies on Fusarium sp. complex causing Pigeonpea wilt in India

Abstract

A total of 50 Fusarium isolates were collected from major pigeonpea growing states of India and studied for cultural and morphological characters. Among 50 isolates, a total of 30 isolates were selected based on their cultural and morphological characters and studied for pathogenic variability on eight pigeonpea (ICP8858, ICP 8859, ICP 8862, BDN-2, ICP 9174 ICP 8863, ICP 2376 and BAHAR) differential genotypes. Among eight genotypes, the four genotypes namely ICP8858, ICP 8859, ICP 8862, BDN-2 reacted differentially to isolates and not much consistent in their pathogenicity, however two genotypes ICP 9174 and ICP 8863 exhibited resistant reactions and two genotypes ICP 2376 and BAHAR exhibited consistent susceptibility to wilt disease and could differentiate the 30 Fusarium isolates into six pathogenic variants (0, 1, 2, 3, 4 and 5). Among 6 variants, maximum distribution of Fusarium variants was noticed in Bihar and Telangana (4 variants in each state) followed by Andhra Pradesh, Karnataka Uttar Pradesh and, Maharashtra (2 variants) and one variant each in New Delhi and Jharkhand states. The ITS-rDNA sequencing 23 Fusarium isolates of revealed that Fusarium udum (65.21) was the dominant species causing pigeonpea wilt in India followed by Fusarium solani (21.7) and Fusarium equiseti (13.04). The results of present study were notable in terms of Fusarium variants, which might be used to deploy location specific wilt resistant cultivars for improved disease management tactics. This study will also aid in the development of broad- based pigeonpea wilt resistant varieties to supress potential epidemics.

Perosomus elumbus fetal monster: a rare cause of dystocia in a beetal goat - a case report from Pakistan

“…Interestingly, recent reports indicate the occurrence of Perosomus Elumbis cases in local does in India Reddy et al (2017). documented cases of fetal monsters (Perosomus Elumbis), whileRavi et al (2011) reported Perosomus Elumbis cases with hydrocephalus in does in 2011.…”