Single Marker Analysis Using Transposon Specific Markers (AhMITE1)  for Yield, Foliar Disease Resistance and Oil Quality in a Mutant  Population of Groundnut (Arachis hypogaea L.)

Abstract Potential for improved control of southern stem rot caused by Sclerotium rolfsii Sacc.on peanut (Arachis hypogaea L.) was evaluated by combining moderate resistance with fungicide use. Various fungicides including carboxin, oxycarboxin, propiconazol, OAC 3890, and PCNB were applied to peanut lines NC 8C, NC Ac 18016, and Florigiant in North Carolina during 1980, 1981, and 1982. Consistently fewer disease loci occurred on NC Ac 18016 than on NC 8C or Florigiant. At least one fungicide reduced stem rot incidence in two of three years tested, but fungicide use did not result in greater yields. Effects of disease resistance and fungicides on suppression of stem rot development were additive.

Download Full-text

Breeding for Disease Resistance in Peanut (Arachis Hypogaea L.)

Annual Review of Phytopathology ◽

10.1146/annurev.py.29.090191.001431 ◽

1991 ◽

Vol 29 (1) ◽

pp. 279-303 ◽

Cited By ~ 40

Author(s):

J C Wynne ◽

M K Beute ◽

S N Nigam

Keyword(s):

Disease Resistance ◽

Arachis Hypogaea ◽

Arachis Hypogaea L

Download Full-text

Potential SNPs related to microspore culture in Raphanus sativus based on a single-marker analysis

Canadian Journal of Plant Science ◽

10.1139/cjps-2017-0333 ◽

2018 ◽

Vol 98 (5) ◽

pp. 1072-1083 ◽

Cited By ~ 2

Author(s):

Yong Suk Chung ◽

Yun Gyeong Lee ◽

Renato Rodrigues Silva ◽

Suhyoung Park ◽

Min Young Park ◽

...

Keyword(s):

Raphanus Sativus ◽

Microspore Culture ◽

P Value ◽

Nucleotide Polymorphisms ◽

Single Marker Analysis ◽

Regeneration Rate ◽

Marker Analysis ◽

Wide Range ◽

Single Marker ◽

High Regeneration

Radish (Raphanus sativus) is an economically important crop grown for its edible roots and leaves. It is a self-incompatible, outcrossing species, making the production of homozygous lines and the development of breeding populations difficult. However, this can be overcome with haploids production techniques using isolated microspores, providing the rapid production of homozygous lines for breeding. Thus, it would be useful to identify radishes with a high regeneration rate from microspore culture. In the current study, 96 radish cultivars or germplasms were evaluated for high regeneration rates. Also, a single-marker analysis (SMA) was applied to detect single nucleotide polymorphisms (SNPs) potentially associated with this trait using genotype-by-sequencing (GBS) technology. The regeneration rate from microspore culture of 96 lines showed a wide range, from 0% to 269.5%. From the SMA, 52 markers were detected at a p value of 0.001 and a total of 11 physically nearby genes with high levels of similarity in various species were identified as candidates for high regeneration rates. This result could be used for clarifying the genetic basis underlying these traits and developing molecular markers associated with regeneration rates and would be beneficial for generating homozygous inbred lines.

Download Full-text