Diverse genetic resources

Research on the morphological characteristics, agronomics, pre-harvest germination resistance, and genetic diversity of some popular rice varieties grown in Binh Dinh province is essential in assessing material resources for selecting and developing new rice varieties that can adapt to climate change. The results show that there is one extra short-day variety, five short-day varieties, and three medium-day varieties.

12p vibego 02-02-2024 1 0   Download

Ebook "Conservation of tropical plant species" is designed to provide a review on the methods and current status of conservation of the tropical plant species. It will also provide the information on the richness of the tropical plant diversity, the need to conserve, and the potential utilization of the genetic resources. Future perspectives of conservation of tropical species will be discussed.

538p lucchinguyen 28-12-2023 3 2   Download

Part 1 book "The quest to conserve rare breeds - Setting the record straight" includes content: Major players, the dark side, maximizing within breed diversity, breeding policies, genetic exchange, utilizing ‘old’ genetic resources, case studies, added value, adapting policy priorities, formidable challenges, blueprint for the future.

70p oursky09 08-11-2023 6 3   Download

The Deo Ca Special Use Forest also plays a very important role in maintaining ecological balance, environment and landscape protection, climate regulation for the region, watershed protection, genetic resources, and biodiversity protection of tropical forest flora and fauna.

9p vispacex 16-11-2023 2 2   Download

Clarifying genetic diversity in a large germplasm resource plays important roles in experimental designs that provides flexible utility in fundamental research and breeding in crops. However, the work is limited due to small collections of barley that are insufficient representatives.

10p vinarcissa 21-03-2023 3 1   Download

Lolium perenne L. is the most important forage grass species in temperate regions. It is also considered as a sustainable source of biomass for energy production. However, improvement in biomass yield has been limited by comparison with other major crops. More efficient utilisation of genetic resources and improved breeding schemes are required to advance L. perenne breeding.

13p vinarcissa 21-03-2023 1 1   Download

Pears (Pyrus spp.) are one of the most important fruit crops in temperate regions. Japanese pear breeding has been carried out for over 100 years, working to release new cultivars that have good fruit quality and other desirable traits. Local cultivar ‘Nijisseiki’ and its relatives, which have excellent fruit texture, have been repeatedly used as parents in the breeding program. This strategy has led to inbreeding within recent cultivars and selections.

12p vinarcissa 21-03-2023 2 1   Download

Ampelopsis grossedentata is an important national medicine in China. It is mainly used commonly by the Yao, Miao, Dong, and other ethnic minorities of China. The current literature, however, contains no study on the molecular genetics and taxonomy of A. grossedentata, which had led to potential problems in the conservation and utilization of this resource. Therefore, the present study was aimed to use simple sequence repeat (SSR) markers for assessing the levels and the distribution of genetic diversity in a sample set of 225 individuals from nine populations of A. grossedentata in China.

13p lyhuyenthu 31-01-2023 3 2   Download

The ability of maize populations/landraces to tolerate drastically extreme environments over the past four centuries in Algeria leads to characterize these genetic resources for germplasm management as well as the identification of the best landraces useful for genetic improvement.

10p vihagrid 30-01-2023 11 3   Download

China exhibits a great diversity of ecosystems and abundant cattle resources, with nearly 30 million cattle from 53 indigenous breeds reared in specific geographic regions. To explore the genetic diversity and population structure of Chinese indigenous cattle, a population genetic analysis at both the individual and population levels was conducted and the admixture analysis was performed.

12p vihagrid 30-01-2023 8 3   Download

The Chinese grass shrimp, Palaemonetes sinensis, is an economically important freshwater shrimp in China, and the study of genetic diversity and structure can positively contribute to the exploration of germplasm resources and assist in the understanding of P. sinensis aquaculture.

9p vihagrid 30-01-2023 7 3   Download

Black cottonwood (Populus deltoides) is one of the keystone forest tree species, and has become the main breeding parents in poplar hybrid breeding. However, the genetic diversity and population structure of the introduced resources are not fully understood.

12p vihagrid 30-01-2023 10 3   Download

Information on population structure and genetic diversity of germplasm in a breeding programme is useful because it enhances judicious utilisation of genetic resources to achieve breeding objectives. Seventy early maturing provitamin A (PVA) quality protein maize (QPM) inbreds developed by the IITA- maize improvement programme were genotyped using 8171 DArTseq markers.

13p vihagrid 30-01-2023 13 4   Download

The study "Genetic characterization of almond (Prunus amygdalus L) using microsatellite markers in the area of Adriatic Sea" covered two geographically distant regions Montenegro (Bar) and Croatia (Sibenik) in a sample of 60 almond genotypes. Genetic analysis of almonds involved the use of ten microsatellite primers for genetic characterization of 60 examined genotypes, which successfully amplified PCR products and were highly polymorphic.

12p lyhuyenthu 31-01-2023 9 2   Download

Multi-parent populations (MPPs) are important resources for studying plant genetic architecture and detecting quantitative trait loci (QTLs). In MPPs, the QTL effects can show various levels of allelic diversity, which can be an important factor influencing the detection of QTLs.

12p vihagrid 30-01-2023 11 3   Download

In southern China, the silver pheasant (Lophura nycthemera) is a widespread species due to complex topography and sufficient habitats and food resources. We investigated the microsatellite and mitochondrial DNA control region sequence of 115 individuals from 7 locations in China to study population dynamics of the silver pheasant during the Pleistocene. The neutrality test and mismatch distribution analyses showed that population expansion began in the interglacial period (76,053 years ago), and the latest common ancestor appeared approximately 970,300 years ago.

13p dolomite36 30-12-2021 10 0   Download

Medicago ciliaris (L.) Krock and Medicago intertexta (L.) Mill are most often found in saline regions and are considered as potential resources for genes related to salinity resistance. To explore the genetic diversity of these two species by mean of nrSSR (simplesequence repeats) markers, 11 accessions originated from different regions in north of Africa and Middle East were chosen. Ten among 14 markers turned out to be polymorphic and gave 72 alleles. Eight markers were very informative with PIC values > 0.5, and three of them were found to be nonneutral.

12p tudichquannguyet 29-11-2021 7 1   Download

Proso millet (Panicum miliaceum L.) has many favored nutritional and agronomic traits, which makes it appropriate for cultivation and consumption all around the world. Genomic resources for proso millet are still very limited but the set of genomic data is improving. In this study, we genotyped six Slovenian landraces of proso millet (P. miliaceum L.) along with one Slovene autochthonous cultivar, Sonček. The chosen set of 11 SSR markers showed that there is low overall heterozygosity (0.561) among Slovenian landraces of proso millet.

11p tudichquannguyet 29-11-2021 23 1   Download

The results showed that fabp10a gene was not strongly expressed in all 3 types of tissues; fabp3 gene was most strongly expressed in liver tissue and fabp7 was highly up-regulated in brain tissue. The results of this study provide a resource for further research on the function of fabp genes and their genetic diversity in striped catfish.

12p spiritedaway36 25-11-2021 8 1   Download

Brassica crops are cultivated widely for human consumption and animal feed purposes, and oilseed rape/canola (Brassica napus and rapa) is the second most important oilseed worldwide. Because of its natural diversity and genetic complexity, genomics studies on oilseed rape will be a useful resource base to modify the quantity and quality of biomass in various crops, and therefore, should have a positive impact on lignocellulosic biofuel production.

16p vibeauty 23-10-2021 7 0   Download