scholarly journals Assessment of genetic diversity within and between pearl millet landraces

2002 ◽  
Vol 105 (5) ◽  
pp. 666-673 ◽  
Author(s):  
Ranjana Bhattacharjee ◽  
P. Bramel ◽  
C. Hash ◽  
M. Kolesnikova-Allen ◽  
I. Khairwal
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Boregowda Nandini ◽  
Hariprasad Puttaswamy ◽  
Ramesh Kumar Saini ◽  
Harischandra Sripathy Prakash ◽  
Nagaraja Geetha

AbstractThe present work is aimed to examine the genetic variability and the distribution pattern of beneficial Trichoderma spp. isolated from rhizosphere samples and their mode of action in improving the plant health. A total of 131 suspected fungi were isolated from the rhizospheric soil and 91 isolates were confirmed as Trichoderma spp. T. asperellum and T. harzianum were found high in the frequency of occurrence. Genetic diversity analysis using RAPD and ISSR revealed the diverse distribution pattern of Trichoderma spp. indicating their capability to adapt to broad agroclimatic conditions. Analysis of genetic diversity using molecular markers revealed intra-species diversity of isolated Trichoderma spp. The frequency of pearl millet (PM) root colonization by Trichoderma spp. was found to be 100%. However, they showed varied results for indole acetic acid, siderophore, phosphate solubilization, β-1,3-glucanase, chitinase, cellulase, lipase, and protease activity. Downy mildew disease protection studies revealed a strong involvement of Trichoderma spp. in direct suppression of the pathogen (mean 37.41) in the rhizosphere followed by inducing systemic resistance. Our findings highlights the probable distribution and diversity profile of Trichoderma spp. as well as narrate the possible utilization of Trichoderma spp. as microbial fungicides in PM cultivation across different agroclimatic zones of India.


2017 ◽  
Vol 16 (15) ◽  
pp. 782-790 ◽  
Author(s):  
ADEOTI Kifouli ◽  
DJEDATIN Gustave ◽  
EWEDJE Ebenezer ◽  
BEULE Thierry ◽  
SANTONI Sylvain ◽  
...  

2019 ◽  
Vol 7 (2) ◽  
pp. 060-070
Author(s):  
Abdulhakeem Abubakar ◽  
Olamide Ahmed Falusi ◽  
Matthew Omoniyi Adebola ◽  
Oladipupo Abdulazeez Yusuf Daudu

2006 ◽  
Vol 22 (1) ◽  
pp. 28-35 ◽  
Author(s):  
B. Pushpavathi ◽  
R. P. Thakur ◽  
K. Chandrashekara Rao ◽  
V. P. Rao

Agriculture ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 97 ◽  
Author(s):  
Govintharaj Ponnaiah ◽  
Shashi Kumar Gupta ◽  
Michael Blümmel ◽  
Maheswaran Marappa ◽  
Sumathi Pichaikannu ◽  
...  

Genetic diversity of 130 forage-type hybrid parents of pearl millet was investigated based on multiple season data of morphological traits and two type of markers: SSRs (Simple sequence repeats) and GBS identified SNPs (Genotyping by sequencing-Single nucleotide polymorphism). Most of the seed and pollinator parents clustered into two clear-cut separate groups based on marker based genetic distance. Significant variations were found for forage related morphological traits at different cutting intervals (first and second cut) in hybrid parents. Across two cuts, crude protein (CP) varied from 11% to 15%, while in vitro organic matter digestibility (IVOMD) varied from 51% to 56%. Eighty hybrids evaluated in multi-location trial along with their parents for forage traits showed that significant heterosis can be realized for forage traits. A low but positive significant correlation found between SSR based genetic distance (GD between parents of hybrid) and heterosis for most of the forage traits indicated that SSR-based GD can be used for predicting heterosis for GFY, DFY and CP in pearl millet. An attempt was made to associate marker-based clusters with forage quality traits, to enable breeders select parents for crossing purposes in forage breeding programs.


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