Inheritance of fresh seed dormancy in recombinant inbred lines (RIL) developed for mapping population TAG 24 x GPBD 4 in groundnut (Arachis hypogeal L.)

2016 ◽  
Author(s):  
Y. B. Naganagoudar ◽  
P. V. Kenchanagoudar ◽  
Santosha Rathod ◽  
C. M. Keerthi ◽  
H. L. Nadaf ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Mapping Population ◽  
Recombinant Inbred Lines ◽  
Recessive Gene ◽  
Inbred Lines ◽  
Test Method ◽  
Chi Square ◽  
Paper Towel ◽  
Fresh Seed ◽  
Arachis Hypogaea L

Pre harvest sprouting in groundnut (Arachis hypogaea L.) seeds belonging to sub species fastigiata is undesirable, since it leads to substantial loss of seeds, both in quantity and quality. This study was conducted to determine the inheritance of fresh seed dormancy in mapping population of TAG 24 x GPBD 4, where in 268 RILs developed from this mapping population. Freshly harvested seeds of mature pods from these RILs were assessed for this dormancy by paper towel test method in laboratory. In the mapping population developed from TAG 24 x GPBD 4, the chi square (c2) test was not significant for the deviation from the expected 3:1 (dormant: non-dormant) ratio. Here it fitted in the 15:1 (non-dormant: dormant) ratio at 14 days after harvest (< 70%). This study showed that seed dormancy in this mapping population was controlled by duplicate recessive gene.

scholarly journals QTL analysis of seed dormancy in Arabidopsis using recombinant inbred lines and MQM mapping

Heredity ◽  
1997 ◽  
Vol 79 (2) ◽  
pp. 190-200 ◽  
Author(s):  
Wybe van der Schaar ◽  
Carlos Alonso-Blanco ◽  
Karen M Léon-Kloosterziel ◽  
Ritsert C Jansen ◽  
Johan W van Ooijen ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

QTL analysis of seed dormancy in Arabidopsis using recombinant inbred lines and MQM mapping

Heredity ◽  
1997 ◽  
Vol 79 (2) ◽  
pp. 190-200 ◽  
Author(s):  
WYBE VAN DER SCHAAR ◽  
CARLOS ALONSO-BLANCO ◽  
KAREN M LÉON-KLOOSTERZIEL ◽  
RITSERT C JANSEN ◽  
JOHAN W VAN OOIJEN ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals Inheritance of resistance to soybean cyst nematode races 3 and 14 in soybean RIL and F2 populations

2007 ◽  
Vol 42 (12) ◽  
pp. 1735-1740 ◽  
Author(s):  
Marcia Flores da Silva ◽  
Ivan Schuster ◽  
Gerardo Domingo Lucio Cervigni ◽  
João Flávio Veloso da Silva ◽  
Waldir Pereira Dias ◽  
...  
Keyword(s):  
Soybean Cyst Nematode ◽  
Recombinant Inbred Lines ◽  
Recessive Gene ◽  
Inbred Lines ◽  
Cyst Nematode ◽  
Inheritance Of Resistance ◽  
Number Of Genes ◽  
Complete Resistance ◽  
Recessive Genes ◽  
Moderate Resistance

The objective of this work was to evaluate the soybean inheritance of resistance to cyst nematode races 3 and 14. The following populations where evaluated: one population of recombinant inbred lines (RILs) [Hartwig (resistant) x Y23 (susceptible line)] for races 3, 14 and 9; one population of families F2:3 [M-SOY 8001 (resistant) x MB/BR 46 - Conquista (susceptible)] for race 3; and one population of families F2:3 [(S5995 (resistant) x BRSMG Renascença (susceptible)] for race 14. In RIL populations, four epistatic genes were identified which conditioned resistance to race 14, and three epistatic ones for resistance to races 3 and 9. The lack of one gene provided moderate resistance under all situations. The highest number of genes for resistance to race 14 points out that genes responsible for lower effects might be involved. In population F2:3 from M-SOY 8001 x MB/BR 46 - Conquista, one recessive gene for moderate resistance and two recessive genes complete resistance to race 3 were identified. Two recessive genes conditioning moderate resistance to race 14 were identified in population F2:3 from the crossing S5995 x BRSMG Renascença. These results will be useful in designing crossings, involving these parentals, with higher possibility to accumulating genes that provide resistance to several SCN races.

scholarly journals TeoNAM: a nested association mapping population for domestication and agronomic trait analysis in maize

2019 ◽  
Author(s):  
Qiuyue Chen ◽  
Chin Jian Yang ◽  
Alessandra M. York ◽  
Wei Xue ◽  
Lora L. Daskalska ◽  
...  
Keyword(s):  
Association Mapping ◽  
Complex Traits ◽  
Agronomic Traits ◽  
Mapping Population ◽  
Allelic Variation ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Nested Association Mapping ◽  
Nested Association Mapping Population ◽  
Association Mapping Population

AbstractRecombinant inbred lines (RILs) are an important resource for mapping genes controlling complex traits in many species. While RIL populations have been developed for maize, a maize RIL population with multiple teosinte inbred lines as parents has been lacking. Here, we report a teosinte nested association mapping population (TeoNAM), derived from crossing five teosinte inbreds to the maize inbred line W22. The resulting 1257 BC1S4 RILs were genotyped with 51,544 SNPs, providing a high-density genetic map with a length of 1540 cM. On average, each RIL is 15% homozygous teosinte and 8% heterozygous. We performed joint linkage mapping (JLM) and genome-wide association study (GWAS) for 22 domestication and agronomic traits. A total of 255 QTLs from JLM were identified with many of these mapping to known genes or novel candidate genes. TeoNAM is a useful resource for QTL mapping for the discovery of novel allelic variation from teosinte. TeoNAM provides the first report that PROSTRATE GROWTH1, a rice domestication gene, is also a QTL associated with tillering in teosinte and maize. We detected multiple QTLs for flowering time and other traits for which the teosinte allele contributes to a more maize-like phenotype. Such QTL could be valuable in maize improvement.

Identification of QTLs for capsaicinoids, fruit quality, and plant architecture-related traits in an interspecific Capsicum RIL population

Genome ◽  
2013 ◽  
Vol 56 (1) ◽  
pp. 61-74 ◽  
Author(s):  
Shawn C. Yarnes ◽  
Hamid Ashrafi ◽  
Sebastian Reyes-Chin-Wo ◽  
Theresa A. Hill ◽  
Kevin M. Stoffel ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Plant Architecture ◽  
Mapping Population ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Quality Traits ◽  
Capsicum Frutescens ◽  
Fruit Quality Traits ◽  
Ril Population ◽  
Tight Linkage

Quantitative trait loci (QTL) analyses in pepper are common for horticultural, disease resistance, and fruit quality traits; although none of the studies to date have used sequence-based markers associated with genes. In this study we measured plant architectural, phenological, and fruit quality traits in a pepper mapping population consisting of 92 recombinant inbred lines derived from a cross between Capsicum frutescens acc. 2814-6 and C. annuum var. NuMexRNAKY. Phenotypic measurements were correlated to loci in a high-density EST-based genetic map. In total, 96 QTL were identified for 38 traits, including 12 QTL associated with capsaicinoid levels. Twenty-one loci showed correlation among seemingly unrelated phenotypic categories, highlighting tight linkage or shared genetics between previously unassociated traits in pepper.

scholarly journals Reliability of ion accumulation and growth components for selecting salt tolerant lines in large populations of rice

2014 ◽  
Vol 41 (4) ◽  
pp. 379 ◽  
Author(s):  
Tanveer Ul Haq ◽  
Javaid Akhtar ◽  
Katherine A. Steele ◽  
Rana Munns ◽  
John Gorham
Keyword(s):  
Salt Tolerance ◽  
Mapping Population ◽  
Recombinant Inbred Lines ◽  
Dry Weight ◽  
Inbred Lines ◽  
Tiller Number ◽  
Ion Accumulation ◽  
Salt Tolerant ◽  
Leaf Injury ◽  
Large Populations

Ion accumulation and growth under salt stress was studied in two experiments in a rice mapping population derived from parents CO39 and Moroberekan with 4-fold differences in shoot Na+ accumulation. The 120 recombinant inbred lines (RILs) had differences up to 100-fold in Na+. Measurement of ‘salt tolerance’ (biomass production of the RILs in 100 mM NaCl relative to controls) after 42 days showed a 2-fold variation in ‘salt tolerance’ between parents, with five RILs being more tolerant than the more tolerant parent CO39. The reliability of various traits for selecting salt tolerance in large populations was explored by measuring Na+, K+ and K+/Na+ ratios in leaf blades and sheaths after 7 or 21 days of exposure to 100 mM NaCl, and their correlation with various growth components and with leaf injury. The highest correlations were found for Na+ in the leaf blade on day 21 with injury at day 42 in both experiments (r = 0.7). Earlier measurements of Na+ or of injury had lower correlations. The most sensitive growth components were tiller number plant–1 and shoot water content (g water g–1 dry weight), and these were correlated significantly with Na+ and, to a lesser extent, with K+/Na+. These studies showed that exposure for at least 42 days may be needed to clearly demonstrate the beneficial effect of the trait for Na+ exclusion on growth under salinity.

scholarly journals Construction of a genetic linkage map in Lilium using a RIL mapping population based on SRAP marker

Genetika ◽  
2015 ◽  
Vol 47 (2) ◽  
pp. 425-438 ◽  
Author(s):  
Li-Jing Chen ◽  
Hong-Mei Li ◽  
Shao-Kun Sun ◽  
Muhammad Irfan ◽  
Jing-Wei Lin ◽  
...  
Keyword(s):  
Linkage Map ◽  
Recombinant Inbred ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Mapping Population ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Linkage Groups ◽  
Marker Interval ◽  
Interval Distance

A genetic linkage map of lily was constructed using RILs (recombinant inbred lines) population of 180 individuals. This mapping population was developed by crossing Raizan No.1 (Formolongo) and Gelria (Longiflomm) cultivars through single-seed descent (SSD). SRAPs were generated by using restriction enzymes EcoRI in combination with either MseI. The resulting products were separated by electrophoresis on 6% denaturing polyacrylamide gel and visualized by silver staining. The segregation of each marker and linkage analysis was done using the program Mapmaker3.0. With 50 primer pairs, a total of 189 parental polymorphic bands were detected and 78 were used for mapping. The total map length was 2,135.5 cM consisted of 16 linkage groups. The number of markers in the linkage groups varied from 1 to 12. The length of linkage groups was range from 11.2 cM to 425.9 cM and mean marker interval distance range from 9.4 cM to 345.4 cM individually. The mean marker interval distance between markers was 27.4 cM. The map developed in the present study was the first sequence-related amplified polymorphism markers map of lily constructed with recombinant inbred lines, it could be used for genetic mapping and molecular marker assisted breeding and quantitative trait locus mapping of Lilium.

scholarly journals Evaluation of Seed Dormancy, One of the Key Domestication Traits in Chickpea

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2292
Author(s):  
Veronika Sedláková ◽  
Pavel Hanáček ◽  
Marie Grulichová ◽  
Lenka Zablatzká ◽  
Petr Smýkal
Keyword(s):  
Seed Dormancy ◽  
Recombinant Inbred Lines ◽  
Germination Percentage ◽  
Inbred Lines ◽  
Histochemical Staining ◽  
Legume Seed ◽  
Wild Progenitor ◽  
Breeding Programs ◽  
Significant Difference ◽  
Domestication Process

Legume seed dormancy has been altered during the domestication process, resulting in non-dormant seeds with a testa that is readily permeable for water. Ultimately, this provides fast and uniform germination, in contrast to dormant seeds of the wild progenitor. To date, germination and seed dormancy were studied mostly in relation to two types of cultivated chickpea: kabuli and desi. We studied seed dormancy, from physiological and anatomical perspectives, in chickpea crops and compared cultivated chickpeas to the wild chickpea progenitor and set of recombinant inbred lines (RIL). There was significant difference in the macrosclereid length of parental genotypes. Cultivated chickpea (C. arietinum, ICC4958) had mean of 125 µm, while wild C. reticulatum (PI48977) had a mean of 165 µm. Histochemical staining of the seed coat also showed differences, mainly in terms of Sudan Red detection of lipidic substances. Imbibition and germination were tested and several germination coefficients were calculated. Cultivated chickpea seeds imbibed readily within 24 h, while the germination percentage of wild chickpea at various times was 36% (24 h), 46% (48 h), 60% (72 h) and reached 100% only after 20 days. RIL lines showed a broader distribution. This knowledge will ultimately lead to the identification of the underlying molecular mechanism of seed dormancy in chickpea, as well as allowing comparison to phylogenetically related legumes, such as pea, lentil and faba bean, and could be utilized in chickpea breeding programs.

Sign in / Sign up

Export Citation Format

Share Document