scholarly journals SEED QUALITY AND GENETIC DIVERSITY OF A CULTIVATED POPULATION OF Mimosa caesalpiniifolia BENTH

2020 ◽  
Vol 33 (4) ◽  
pp. 1000-1006
Author(s):  
FERNANDO DOS SANTOS ARAÚJO ◽  
FRANCIVAL CARDOSO FELIX ◽  
CIBELE DOS SANTOS FERRARI ◽  
FÁBIO DE ALMEIDA VIEIRA ◽  
MAURO VASCONCELOS PACHECO
Keyword(s):  
Genetic Diversity ◽  
Seed Production ◽  
Seed Quality ◽  
Inter Simple Sequence Repeat ◽  
Northeastern Brazil ◽  
Commercial Seed ◽  
Dry Tropical Forests ◽  
Physiological Quality ◽  
Simple Sequence

ABSTRACT Mimosa caesalpiniifolia Benth. (Fabaceae) is a native tree of the dry tropical forests of northeastern Brazil and can be exploited for logging and reforestation purposes. This study evaluated the physiological quality of seeds and the genetic diversity of a cultivated population of M. caesalpiniifolia, against the background of potential commercial seed production. Nine trees were used in the study. The quality of their seeds was evaluated by germination and vigour tests, and their genetic diversity was accessed using Inter Simple Sequence Repeat (ISSR). The studied tree group presents a moderate genetic diversity and produces seeds with high physiological quality, but with subtle vigour differences, which can be detected by electrical conductivity and potassium leaching tests. Our results suggest that these trees are potentially suitable for commercial seed production.

Producción de semilla de tomate de cáscara en hidroponía

2019 ◽  
pp. 19-24
Author(s):  
Eduardo Rodríguez-Guzmán ◽  
Luis Javier Arellano-Rodríguez ◽  
Alicia De Luna-Vega ◽  
Cruz Arriaga-Ruiz
Keyword(s):  
Volcanic Rock ◽  
Seed Production ◽  
Nutrient Solution ◽  
Seed Yield ◽  
Seed Quality ◽  
Productive Capacity ◽  
Physiological Quality ◽  
Polyethylene Bags ◽  
Husk Tomato

Fruit and seed productive capacity and physiological seed quality of 2 varieties of husk tomato were estimated: Jojutla and CHF1. The study was conducted in hydroponics under greenhouse, in the CUCBA-UDG, Zapopan, Jalisco. Red volcanic rock (/Tezontle) of 0.5 to 2 cm in diameter was used in 19 L polyethylene bags and Steiner's universal nutrient solution of 0.3 to 0.7 atm, depending on the stage of the plant. The production of fruit and seed and the physiological quality of the seed were estimated. The varieties Jojutla and CHF1 showed a similar behavior in the production of fruit and seed, with lower fruit yields than expected (30 ton / ha in the field) because only 3 harvests were made, looking to produce husk tomato in winter when it reaches attractive prices. The weight of the fruit was greater as cuts were made while the seed production improved by cutting, associated with a greater number of fruits, while the weight of the fruit was not related to the seed yield. The physiological quality of the seed was affected by cutting the fruit to commercial maturity even when it was left to mature in the shade.

scholarly journals Genetic Diversity in Mimosa tenuiflora (Willd.) Poir.: A Multipurpose Plant Genetic Resource of Semiarid Brazil

2021 ◽  
Vol 13 (5) ◽  
pp. 113
Author(s):  
Lorena S. Silva ◽  
Renata R. Simplício ◽  
Sendi R. Arruda ◽  
Derval G. Pereira ◽  
Milene Maria S. Castro ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Natural Populations ◽  
Inter Simple Sequence Repeat ◽  
Shannon Index ◽  
Northeastern Brazil ◽  
Semiarid Region ◽  
The Mean ◽  
Environmental Importance ◽  
Simple Sequence ◽  
Mimosa Tenuiflora

Caatinga is the third largest biome in Brazil but little is known about the species diversity from this biotic community, despite of its social, economic and environmental importance for the semiarid region. Among the several typical plant species from Caatinga, Mimosa tenuiflora (Willd.) Poir. (black jurema) stands out because it plays a major role in the maintenance of this ecosystem, besides being widely used to recover degraded areas. Therefore, the goal of this study was to evaluate the genetic diversity and structural analysis from 10 populations of M. tenuiflora from the state of Bahia, northeastern Brazil, using 10 ISSR (Inter Simple Sequence Repeat) markers. A total of 117 fragments were obtained from 218 individuals with a mean number of 11.8 bands per primer. The mean population polymorphism was 85.0%, while the values of genetic diversity (He) and the Shannon index (I) were equal to 0.295 and 0.442, respectively. Most of genetic variation was observed (87.0%) but high FST values were observed (0.132), indicating the populations are genetically differentiated. Bayesian inference using Structure divided the populations into two groups while Geneland indicated five clusters that could be related to the fragmentation of Caatinga and to constraints in the dispersal of pollen and seeds. In conclusion, M. tenuiflora presents high levels of genetic diversity and natural populations might serve as potential sources for management and reforestation of degraded areas in Caatinga.

Genetic diversity of Symplocos paniculata of Hunan province revealed by inter-simple sequence repeat (ISSR)

2019 ◽  
Vol 51 (5) ◽  
Author(s):  
Huifang Cao ◽  
Qiang Lin ◽  
Peiwang Li ◽  
Jingzhen Chen ◽  
Changzhu Li ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Simple Sequence Repeat ◽  
Inter Simple Sequence Repeat ◽  
Hunan Province ◽  
Sequence Repeat ◽  
Simple Sequence

ISSR Marker Based Genetic Diversity in Morinda Spp. For Its Enhanced Collection, Conservation and Utilization

2021 ◽  
Author(s):  
Lalit Arya ◽  
Ramya Kossery Narayanan ◽  
Anjali Kak ◽  
Chitra Devi Pandey ◽  
Manjusha Verma ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Gene Diversity ◽  
Inter Simple Sequence Repeat ◽  
Issr Markers ◽  
Morinda Citrifolia ◽  
Species Differentiation ◽  
Information Index ◽  
Upgma Cluster Analysis ◽  
Simple Sequence

Abstract Morinda (Rubiaceae) is considerably recognized for its multiple uses viz. food, medicine, dyes, firewood, tools, oil, bio-sorbent etc. The molecular characterization of such an important plant would be very useful for its multifarious enhanced utilization. In the present study, 31 Morinda genotypes belonging to two different species Morinda citrifolia and Morinda tomentosa collected from different regions of India were investigated using Inter Simple Sequence Repeat (ISSR) markers. Fifteen ISSR primers generated 176 bands with an average of 11.7 bands per primer, of which (90.34%) were polymorphic. The percentage of polymorphic bands, mean Nei’s gene diversity, mean Shannon’s information index in Morinda tomentosa and Morinda citrifolia was [(69.89%, 30.68%); (0.21 ± 0.19, 0.12 ± 0.20); (0.32 ± 0.27 0.17 ± 0.28)] respectively, revealing higher polymorphism and genetic diversity in Morinda tomentosa compared to Morinda citrifolia. Structure, and UPGMA cluster analysis placed the genotypes into well-defined separate clusters belonging to two species Morinda tomentosa and Morinda citrifolia revealing the utility of ISSR markers in species differentiation. Distinct ecotypes within a particular species could also be inferred emphasizing the collection and conservation of Morinda genotypes from different regions, in order to capture the overall diversity of respective species. Further higher diversity of M. tomentosa must be advanced for its utilization in nutraceutical, nutritional and other nonfood purposes.

scholarly journals Genetic diversity for physiological quality of seeds from corn (Zea mays L.) intervarietal crossbreeds

2013 ◽  
Vol 35 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Daniele Nerling ◽  
Cileide Maria Medeiros Coelho ◽  
Rubens Onofre Nodari
Keyword(s):  
Genetic Diversity ◽  
Zea Mays L ◽  
Accelerated Aging ◽  
Genetic Contribution ◽  
Percentage Germination ◽  
Canonical Variables ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality

The physiological quality is based on the genotype and may be accompanied since the first stages of selection through the study of genetic diversity. The purpose of this study was to evaluate the parental genetic contribution in the seed physiological quality in corn intervarietal crossbreeds. The intervarietal crossbreeds were performed using landraces genotypes, open pollinated varieties and commercial hybrids. The seeds obtained from the crossbreed, their equivalents and parentals were evaluated regarding their water percentage, germination, germination speed rate, accelerated aging, field emergence and electrical conductivity. The seeds obtained in the crossbreed are viable and vivid with heterosis when compared with the parentals. The accelerated aging test was more effective for selecting the strongest genotypes. The canonical variables were useful to group the genotypes that presented similar physiological characteristics. The genotypes MPA 01 x Pixurum 05, MPA 01 x AS1565, MPA 01 x SJC5886, SJC5886 x Pixurum 05 and Fundacep 35 x SCS 154 Fortuna were the best crossbreeds regarding the production of better physiological quality seeds.

scholarly journals Genetic diversity in soybean seed quality under different storage conditions

2017 ◽  
Vol 38 (1) ◽  
pp. 57
Author(s):  
Daniele Piano Rosa ◽  
Danúbia Aparecida Costa Nobre ◽  
Diego Santos Oliveira ◽  
Francisco Charles dos Santos Silva ◽  
André Ricardo Gomes Bezerra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Seed Quality ◽  
Soybean Seed ◽  
High Standard ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Soybean Cultivars ◽  
High Germination ◽  
Physiological Quality ◽  
Almost All

This study aimed to assess the effect of genetic diversity on physiological quality of soybean seeds stored in cold chamber and under environmental conditions. Ten cultivars were assessed in a randomized factorial design (2x10). Factor 1 corresponded to two storage conditions and factor 2 to ten soybean cultivars, with four replications. The evaluated variables were total germination (G%), first count of germination (F%), percentage of abnormal seedlings (AS%), germination speed index (GSI), water content (WC), electrical conductivity (EC), dry matter of seedlings (DMS) and length of seedlings (LS). Data underwent ANOVA, followed by Scott Knott test, as well as multivariate analysis of genetic diversity. The results showed a higher physiological quality for seeds under cold storage. Half of the cultivars (FPS Júpiter, FPS Urano, FPS Antares, FPS Netuno and CD 250) presented high germination rates and seed vigor, being thus indicated as high-standard materials for further breeding programs. Besides that, storage environment had influence on the clustering of soybean cultivars. Moreover, cultivars had genetic dissimilarity for almost all assessed traits as G%, GSI, F%, AS%, EC, DMS and LS.

Sign in / Sign up

Export Citation Format

Share Document