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.

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

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 Seed dormancy removal treatments and germnaton characterstcs of Acer trautvetteri Medvedev seeds

2020 ◽  
Vol 144 (9-10) ◽  
pp. 473-473
Author(s):  
Hanife Erdogan Genç ◽  
Ali Ömer Üçler
Keyword(s):  
Seed Dormancy ◽  
Germination Percentage ◽  
Climatic Conditions ◽  
Black Sea Region ◽  
Seed Collection ◽  
Germination Characteristics ◽  
Significant Difference ◽  
Physiological Dormancy ◽  
Negative Effect ◽  
Collection Time

In this study, seed dormancy removal and germination characteristics of Acer trautvetteri Medvedev, is one of the major maple species of the eastern Black Sea region, were studied. To do that, the seeds were collected in 2008 three times with aproximately 15-days intervals. In order to remove dormancy, several germination treatments were applied. The treatments were (1) different seed collection time, (2) soaking in water, (3) cold-moist stratification and (4) GA3 (gibberellic acid) application. The treated seeds were germinated in growing chamber at 5 0C and in greenhouse conditions. This research indicated that seeds of Acer trautvetteri exhibit physiological dormancy and require stratification period to remove seed dormancy. The highest germination percentage in the growing chamber subjected to GA3 application after eight weeks of stratification treatment was 66 % for Acer trautvetteri seeds. The highest germination percentage in greenhouse was obtained with cold stratification after eight weeks (81 %). Although GA3 treatment had a positive effect on germination in growth chamber + 5 0C, GA3 treatment had a negative effect on germination in greenhouse conditions. Soaking in water of nonstratified seeds wasn’t any significant difference on seed germination. There was a positive correlation between seed collection time and germination (r=0.59). As a result, the third collection time (in october) should be preferred as seed collection time in Acer trautvetteri seeds, considering that it may vary according to the climatic conditions of the year.

AMMI and GGE biplot analysis to evaluate the phenotypic stability of recombinant inbred lines (RILs) of peanut under mid-season water stress conditions

2019 ◽  
Vol 79 (02) ◽  
Author(s):  
B. C. Ajay ◽  
B. M. Chikani ◽  
H. K. Gor ◽  
Chuni Lal
Keyword(s):  
Water Stress ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Selection Index ◽  
Inbred Lines ◽  
High Yield ◽  
Gge Biplot ◽  
Phenotypic Stability ◽  
Breeding Programs ◽  
Mean Values

In a two-year experiment 186 recombinant inbred lines (RILs) derived from TAG-24 and TMV-2NLM cross were grown under water stress (WS) and without water stress (WWS) to identify stable high yielding genotypes and genotypes with high WUE using SLA, SCMR or WSD under drought. Genotypes PBS-40107, PBS-40110, PBS-40114, PBS-40117, PBS-40152, PBS-40159 and PBS-40521 had high yield under both WS and WWS conditions. Mean values for SCMR and WSD increased under WS whereas SLA, HI, PY and KY increased under WWS condition. Genotypes PBS-40616 and PBS-40110 were identified as stable high yielders by AMMI, GGE and simultaneous selection index (SSI) and could be cultivated under drought stress and alternatively could be used in breeding programs.

Diverse sources of resistance to Spodoptera litura (F.) in groundnut

2019 ◽  
Vol 79 (01S) ◽  
Author(s):  
M. A. Saleem ◽  
G. K. Naidu ◽  
H. L. Nadaf ◽  
P. S. Tippannavar
Keyword(s):  
Recombinant Inbred ◽  
Spodoptera Litura ◽  
Hot Spot ◽  
Recombinant Inbred Lines ◽  
Insect Pest ◽  
Inbred Lines ◽  
Leaf Damage ◽  
Botanical Variety ◽  
Resistant Genotypes ◽  
Botanical Varieties

Spodoptera litura an important insect pest of groundnut causes yield loss up to 71% in India. Though many effective chemicals are available to control Spodoptera, host plant resistance is the most desirable, economic and eco-friendly strategy. In the present study, groundnut mini core (184), recombinant inbred lines (318) and elite genotypes (44) were studied for their reaction to Spodoptera litura under hot spot location at Dharwad. Heritable component of variation existed for resistance to Spodoptera in groundnut mini core, recombinant inbred lines and elite genotypes indicating scope for selection of Spodoptera resistant genotypes. Only 29 (15%) genotypes belonging to hypogaea, fastigiata and hirsuta botanical varieties under mini core set, 15 transgressive segregants belonging to fastigiata botanical variety among 318 recombinant inbred lines and three genotypes belonging to hypogaea and fastigiata botanical varieties under elite genotypes showed resistance to Spodoptera litura with less than 10% leaf damage. Negative correlation existed between resistance to Spodoptera and days to 50 per cent flowering indicating late maturing nature of resistant genotypes. Eight resistant genotypes (ICG 862, ICG 928, ICG 76, ICG 2777, ICG 5016, ICG 12276, ICG 4412 and ICG 9905) under hypogaea botanical variety also had significantly higher pod yield. These diverse genotypes could serve as potential donors for incorporation of Spodoptera resistance in groundnut.

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