what is breed? what is purity?
... constrain matings to only suri x suri, in the hopes of finally attaining a homogeneous population that only produces suri offspring. This is the “suri only and always” option. The “anything goes” option is very likely to prove too extreme for maintaining any consistent production of suri type in mat ...
... constrain matings to only suri x suri, in the hopes of finally attaining a homogeneous population that only produces suri offspring. This is the “suri only and always” option. The “anything goes” option is very likely to prove too extreme for maintaining any consistent production of suri type in mat ...
Preliminary Report - Rufford Small Grants
... named after its actual discoverer. The publication of discovered species attracted great attention in orchidology and horticulture, as well as activated interests of international orchid trade. The increasing of market demands for newly described species leads to fast rice of cost and plant collecti ...
... named after its actual discoverer. The publication of discovered species attracted great attention in orchidology and horticulture, as well as activated interests of international orchid trade. The increasing of market demands for newly described species leads to fast rice of cost and plant collecti ...
The Biology of Hordeum vulgare L. (barley)
... In general, two-row barley varieties are preferred for malt production (Australian Bureau of Statistics 2007), although six-row barley is common in some American style lager beers. Malting barley varieties show more uniform germination, need shorter steeping, and have less protein (8–10.5% dry matte ...
... In general, two-row barley varieties are preferred for malt production (Australian Bureau of Statistics 2007), although six-row barley is common in some American style lager beers. Malting barley varieties show more uniform germination, need shorter steeping, and have less protein (8–10.5% dry matte ...
Groundnut at a Glance - UGA CAES
... foods for children and invalid foods for aged people and as fertilizer. If groundnut produce is contaminated with aflatoxin, the cake will also be contaminated. However, groundnut oil would be free from aflatoxin, if it is refined. The contaminated cake should not be used as animal or human food.) U ...
... foods for children and invalid foods for aged people and as fertilizer. If groundnut produce is contaminated with aflatoxin, the cake will also be contaminated. However, groundnut oil would be free from aflatoxin, if it is refined. The contaminated cake should not be used as animal or human food.) U ...
chapter five - Deutsche Digitale Bibliothek
... The Digo are one of the nine subgroups of the Midzichenda (commonly known as Mijikenda), who inhabit the southern part of the Kenya coast, and they maintain sacred forests known as kaya. Traditionally kaya referred only to a cleared settlement area in the middle of the forest, but today the term is ...
... The Digo are one of the nine subgroups of the Midzichenda (commonly known as Mijikenda), who inhabit the southern part of the Kenya coast, and they maintain sacred forests known as kaya. Traditionally kaya referred only to a cleared settlement area in the middle of the forest, but today the term is ...
Working with Ferns: Issues and Applications
... as ferns can become useful for man as beautiful ornamentals, or producers of secondary metabolites with interesting pharmacological properties, or can be even used as food. But the interest in the study of ferns can be considered under a more basic point of view, there are processes not very well kn ...
... as ferns can become useful for man as beautiful ornamentals, or producers of secondary metabolites with interesting pharmacological properties, or can be even used as food. But the interest in the study of ferns can be considered under a more basic point of view, there are processes not very well kn ...
Researching Invasive Species 50 Years After Elton
... Fortunately, they have been captured in a comprehensive manner for those of us who were not there. The contributors to this volume are certainly the leaders in this field and have laid its foundations, including the organizer of this remarkable event, David Richardson. The theme that held this meeti ...
... Fortunately, they have been captured in a comprehensive manner for those of us who were not there. The contributors to this volume are certainly the leaders in this field and have laid its foundations, including the organizer of this remarkable event, David Richardson. The theme that held this meeti ...
The Biology of Coastal Sand Dunes
... three types of landscapes: sea coasts and lakeshores, river valleys, and arid regions. Coastal dunes are formed along coasts in areas above the high water mark of sandy beaches. They occur in both the northern and southern hemisphere from the Arctic and Antarctic to the equator, and in arid and semi ...
... three types of landscapes: sea coasts and lakeshores, river valleys, and arid regions. Coastal dunes are formed along coasts in areas above the high water mark of sandy beaches. They occur in both the northern and southern hemisphere from the Arctic and Antarctic to the equator, and in arid and semi ...
Technologies To Maintain Biological Diversity
... percent of productivity increases and for annual contributions of about $1 billion to U.S. agriculture, For instance, two species of wild green tomatoes discovered in an isolated area of the Peruvian highlands in the early 1960s have contributed genes for marked increase in fruit pigmentation and so ...
... percent of productivity increases and for annual contributions of about $1 billion to U.S. agriculture, For instance, two species of wild green tomatoes discovered in an isolated area of the Peruvian highlands in the early 1960s have contributed genes for marked increase in fruit pigmentation and so ...
Technologies To Maintain Biological Diversity
... percent of productivity increases and for annual contributions of about $1 billion to U.S. agriculture, For instance, two species of wild green tomatoes discovered in an isolated area of the Peruvian highlands in the early 1960s have contributed genes for marked increase in fruit pigmentation and so ...
... percent of productivity increases and for annual contributions of about $1 billion to U.S. agriculture, For instance, two species of wild green tomatoes discovered in an isolated area of the Peruvian highlands in the early 1960s have contributed genes for marked increase in fruit pigmentation and so ...
Slide 1
... During sexual reproduction, male and female reproductive cells join in a process known as fertilization to produce a new cell. Pea flowers are normally self-pollinating, which means that sperm cells fertilize egg cells from within the same flower. Mendel’s garden had several stocks of pea plants tha ...
... During sexual reproduction, male and female reproductive cells join in a process known as fertilization to produce a new cell. Pea flowers are normally self-pollinating, which means that sperm cells fertilize egg cells from within the same flower. Mendel’s garden had several stocks of pea plants tha ...
Squills (Scilla s.lat., Hyacinthaceae) in the flora of the Czech
... GREILHUBER et al. 1981). In contrast, its exclusion from the genus Scilla was based only on differences in the structure of the perianth and stamens coalescent with it (see also below). It is still necessary to discuss the transfer of the many species formerly classified in the genus Scilla s.lat. i ...
... GREILHUBER et al. 1981). In contrast, its exclusion from the genus Scilla was based only on differences in the structure of the perianth and stamens coalescent with it (see also below). It is still necessary to discuss the transfer of the many species formerly classified in the genus Scilla s.lat. i ...
Ecological Speciation
... increases the recruitment and frequency of locally adapted alleles. Lenormand then details the mechanisms involved in reinforcement, particularly assortative mating, dispersal, and recombination. He highlights that these characteristics represent the three fundamental steps in a sexual life cycle (s ...
... increases the recruitment and frequency of locally adapted alleles. Lenormand then details the mechanisms involved in reinforcement, particularly assortative mating, dispersal, and recombination. He highlights that these characteristics represent the three fundamental steps in a sexual life cycle (s ...
Pollen and seed desiccation tolerance in relation
... been well studied in seeds, especially since Roberts (1973) coined the terms recalcitrant and orthodox to indicate the difficulty and ease, respectively, of being able to maintain seeds in a viable state during dry storage. Specifically, seeds with low moisture content shed by a parent plant after m ...
... been well studied in seeds, especially since Roberts (1973) coined the terms recalcitrant and orthodox to indicate the difficulty and ease, respectively, of being able to maintain seeds in a viable state during dry storage. Specifically, seeds with low moisture content shed by a parent plant after m ...
Book I - a translation and commentary.
... authors, Pliny and Malpighi,l and checked through their writings to confirm Ray's accuracy. In some instances I have quoted from both Pliny and Malpighi, but because in most cases Ray is either quoting at length, paraphrasing or selecting various sections (with omissions) from an argument of either ...
... authors, Pliny and Malpighi,l and checked through their writings to confirm Ray's accuracy. In some instances I have quoted from both Pliny and Malpighi, but because in most cases Ray is either quoting at length, paraphrasing or selecting various sections (with omissions) from an argument of either ...
get Assignment File
... 24.The physical characteristics of an organism are called its ____________, whereas the genetic characteristics of an organism are called its ____________. a. alleles; phenotype b. genotype; phenotype c. heredity; genotype d. phenotype; genotype 25. There are genetic crosses in which neither of two ...
... 24.The physical characteristics of an organism are called its ____________, whereas the genetic characteristics of an organism are called its ____________. a. alleles; phenotype b. genotype; phenotype c. heredity; genotype d. phenotype; genotype 25. There are genetic crosses in which neither of two ...
Cytogenetic Analysis Shows that the Unusually Large Chromosome
... (black larval marking) silkworm (Bombyx mori) strain (TWPB). We have analyzed the composition and arrangement of this large chromosome. A genetic linkage analysis shows that the large chromosome is made up of the W chromosome, the second chromosome fragment (p fragment), and the fifth chromosome (li ...
... (black larval marking) silkworm (Bombyx mori) strain (TWPB). We have analyzed the composition and arrangement of this large chromosome. A genetic linkage analysis shows that the large chromosome is made up of the W chromosome, the second chromosome fragment (p fragment), and the fifth chromosome (li ...
Wheat Genetic Resources and Genomics
... *[email protected] Key words: cereals, genetic resources, data management, genotyping, phenotyping Genetics resources (GR) are used by breeders since many decades in their plant breeding programs to produce modern varieties by introducing genes of interest (i.e. resistance genes). ...
... *[email protected] Key words: cereals, genetic resources, data management, genotyping, phenotyping Genetics resources (GR) are used by breeders since many decades in their plant breeding programs to produce modern varieties by introducing genes of interest (i.e. resistance genes). ...
The effect of inbreeding rate on fitness, inbreeding depression and
... fitness and heterozygosity is often observed in experimental studies and in the wild (see e.g. Keller and Waller 2002; Reed and Frankham 2003; Spielman et al. 2004). As the average homozygosity in a population increases, the difference in homozygosity between offspring of close relatives and offspri ...
... fitness and heterozygosity is often observed in experimental studies and in the wild (see e.g. Keller and Waller 2002; Reed and Frankham 2003; Spielman et al. 2004). As the average homozygosity in a population increases, the difference in homozygosity between offspring of close relatives and offspri ...
Neurospora tetrasperma crosses heterozygous for hybrid
... the breakpoint undergoes second-division segregation (figure 2). Figure 2 shows that ascospores that receive a pair of ‘first-cousin’ nuclei can become homoallelic for markers that underwent first-division segregation and heteroallelic for markers that underwent second-division segregation, whereas ...
... the breakpoint undergoes second-division segregation (figure 2). Figure 2 shows that ascospores that receive a pair of ‘first-cousin’ nuclei can become homoallelic for markers that underwent first-division segregation and heteroallelic for markers that underwent second-division segregation, whereas ...
The relationship between fundamental and realized niches in plant
... distribution range, was determined by climate envelope modelling, within which species distribution maps are related to macroclimatic variables. ...
... distribution range, was determined by climate envelope modelling, within which species distribution maps are related to macroclimatic variables. ...
RASTROCOCCUS ICERYOIDES GREEN (HEMIPTERA: PSEUDOCOCCIDAE) AND ITS ASSOCIATED NATURAL
... were used to identify climatically suitable areas in Africa that are agro-meteorologically similar to the aboriginal home of the pest. The first step was to carry out a countrywide survey in Kenya and Tanzania to establish the distribution, host-plant relationship and natural enemies of this pest. T ...
... were used to identify climatically suitable areas in Africa that are agro-meteorologically similar to the aboriginal home of the pest. The first step was to carry out a countrywide survey in Kenya and Tanzania to establish the distribution, host-plant relationship and natural enemies of this pest. T ...
Student Handout
... teosinte and maize look like very different plants. It seemed unlikely that teosinte would give rise to maize within the 10,000 years or so that humans had been growing crops, because the process would involve changes in many genes—too many to occur in this time span. Dr. Beadle’s experiment set out ...
... teosinte and maize look like very different plants. It seemed unlikely that teosinte would give rise to maize within the 10,000 years or so that humans had been growing crops, because the process would involve changes in many genes—too many to occur in this time span. Dr. Beadle’s experiment set out ...
Mapping of QTL for body conformation and behavior in cattle
... behavior traits are of a quantitative nature and display varying amounts of genetic variation. Heritability estimates in dairy cattle range from 0.25 to 0.60 for body conformation traits and from 0.15 to 0.25 for behavior (i.e., temperament) (Schrooten et al. 2000; Visscher and Goddard 1995). Select ...
... behavior traits are of a quantitative nature and display varying amounts of genetic variation. Heritability estimates in dairy cattle range from 0.25 to 0.60 for body conformation traits and from 0.15 to 0.25 for behavior (i.e., temperament) (Schrooten et al. 2000; Visscher and Goddard 1995). Select ...
Mendelian Genetics
... Using pea plants, found indirect but observable evidence of how parents transmit genes to offspring ...
... Using pea plants, found indirect but observable evidence of how parents transmit genes to offspring ...
Hybrid (biology)
In biology a hybrid, also known as cross breed, is the result of mixing, through sexual reproduction, two animals or plants of different breeds, varieties, species or genera. Using genetic terminology, it may be defined as follows. Hybrid generally refers to any offspring resulting from the breeding of two genetically distinct individuals, which usually will result in a high degree of heterozygosity, though hybrid and heterozygous are not, strictly speaking, synonymous. a genetic hybrid carries two different alleles of the same gene a structural hybrid results from the fusion of gametes that have differing structure in at least one chromosome, as a result of structural abnormalities a numerical hybrid results from the fusion of gametes having different haploid numbers of chromosomes a permanent hybrid is a situation where only the heterozygous genotype occurs, because all homozygous combinations are lethal.From a taxonomic perspective, hybrid refers to: Offspring resulting from the interbreeding between two animal species or plant species. See also hybrid speciation. Hybrids between different subspecies within a species (such as between the Bengal tiger and Siberian tiger) are known as intra-specific hybrids. Hybrids between different species within the same genus (such as between lions and tigers) are sometimes known as interspecific hybrids or crosses. Hybrids between different genera (such as between sheep and goats) are known as intergeneric hybrids. Extremely rare interfamilial hybrids have been known to occur (such as the guineafowl hybrids). No interordinal (between different orders) animal hybrids are known. The third type of hybrid consists of crosses between populations, breeds or cultivars within a single species. This meaning is often used in plant and animal breeding, where hybrids are commonly produced and selected, because they have desirable characteristics not found or inconsistently present in the parent individuals or populations.↑ ↑ ↑ ↑