MATERNAL INHERITANCE OF LEAF VARIEGATION IN HEXAPLOID WHEAT

1956 ◽  
Vol 34 (5) ◽  
pp. 801-804 ◽  
Author(s):  
T. J. Arnason
Keyword(s):  
Embryo Development ◽  
Hexaploid Wheat ◽  
Maternal Inheritance ◽  
Wheat Plant ◽  
Maternal Parent ◽  
Plastid Mutation ◽  
Leaf Variegation ◽  
Leaf Character ◽  
Chromosomal Genes ◽  
Variegated Leaf

A P32-treated vulgare wheat plant produced an offspring having yellow-green stripes on the leaves. The variegated leaf character is maternally inherited. Progenies of individual variegated selfed plants differ widely in the proportions of green: variegated individuals. Green sibs of variegated plants breed true. In crosses between variegated awn-tipped and green bearded plants, the awn character segregated in a simple Mendelian fashion while the variegation appeared only in individuals whose maternal parent was variegated. Plastid mutation independent of chromosomal genes is presumed to have occurred in the P32-treated parent of the original variegated plant. On the plastid-mutation hypothesis, variegated plants have two kinds of plastids, normal and mutant, and either or both kinds may be represented in the eggs produced. When both kinds of plastids are present, segregation during embryo development may result in the variegated effect seen in the older plants.

scholarly journals CYTOPLASMIC INHERITANCE OF A CELL SURFACE ANTIGEN IN THE MOUSE

Genetics ◽  
1983 ◽  
Vol 103 (3) ◽  
pp. 483-494
Author(s):  
Kirsten Fischer Lindahl ◽  
Barbara Hausmann
Keyword(s):  
Cell Surface ◽  
Surface Antigen ◽  
Maternal Inheritance ◽  
Killer Cell ◽  
Cell Surface Antigen ◽  
Laboratory Mice ◽  
Mus Spretus ◽  
Chromosomal Genes ◽  
In The Wild ◽  
A Cell

ABSTRACT Mta is a cell surface antigen of the mouse and serves as a target for specific T killer lymphocytes. Using a killer cell assay, the antigen has been found in 72 strains of laboratory mice and, with one exception, in all tested samples of mice caught in the wild or bred from such, including Mus molossinus, Mus castaneus and Mus spretus. Five strains of rats, non-inbred NMRI mice, most substrains of NZB mice and the closely related strain NZO are negative for Mta. In reciprocal F1 crosses between several Mta+ and two Mta- strains, the antigen is maternally transmitted; that is, Mta+ females bear only positive offspring, whereas Mta- females bear only negative offspring, regardless of the genotype of the male. Since 34 foster-nursed mice had the Mta type of their genetic mothers, the factor that determines expression of Mta must be transmitted before birth and not via the milk. The cytoplasmic genes of Mta+ strains have been combined with the chromosomal genes of Mta- strains, and vice versa, by repeated backcrossing. All progeny retained the Mta type of their maternal lines. Thus, the Mta type is determined solely by maternal inheritance and is not influenced by chromosomal genes. We found no evidence of incompatibility between the cytoplasmic factors and nuclear genes of Mta- and Mta+ strains.

PLASTID INHERITANCE IN STREPTOCARPUS (GESNERIACEAE) AND AN INFERRED HYBRID ORIGIN FOR A POPULATION OF S. AFF. PRIMULIFOLIUS FROM IGODA RIVER, SOUTH AFRICA

2003 ◽  
Vol 60 (3) ◽  
pp. 389-408 ◽  
Author(s):  
M. MÖLLER ◽  
K. J. BROOKS ◽  
M. HUGHES
Keyword(s):  
South Africa ◽  
Maternal Inheritance ◽  
River Mouth ◽  
Intergenic Spacer ◽  
Morphological Data ◽  
Hybrid Origin ◽  
Interspecific Crosses ◽  
Eastern Cape ◽  
Plastid Inheritance ◽  
Maternal Parent

A length polymorphism in the trnL/trnF intergenic spacer was used as a marker to determine the mode of chloroplast inheritance in Streptocarpus (Gesneriaceae). Exclusively maternal inheritance was recorded for all the F1 progeny of reciprocal intraspecific crosses between S. primulifolius and a population referred to as S. aff. primulifolius from the Igoda River mouth, Eastern Cape, South Africa, and for interspecific crosses between S. rexii and S. dunnii. A combination of molecular and morphological data was used to clarify the origin of S. aff. primulifolius, which possesses S. rexii-type cpDNA and rDNA, while the morphological data suggest an intermediate position between S. rexii and S. primulifolius. The distribution of S. rexii and S. primulifolius, combined with molecular and morphological data, supports the hypothesis that the S. aff. primulifolius population is a hybrid between S. rexii and S. primulifolius, with S. rexii as the maternal parent, and that substantial molecular but limited morphological introgression into S. primulifolius has taken place.

Variation of myrosinase activity in the cross progenies of two Brassica juncea lines with relatively low and high myrosinase activities

2002 ◽  
Vol 82 (3) ◽  
pp. 579-582 ◽  
Author(s):  
Qun Li ◽  
Jack Brown ◽  
Sanford D. Eigenbrode
Keyword(s):  
Brassica Juncea ◽  
Maternal Inheritance ◽  
Inheritance Pattern ◽  
Protein Extract ◽  
Maternal Parent ◽  
Crossing Experiment ◽  
Rate Of Hydrolysis ◽  
Parental Lines ◽  
Hydrolysis Of ◽  
Myrosinase Activity

A crossing experiment was conducted to estimate the inheritance pattern for myrosinase activity in Brassica juncea. Myrosinase activities were measured in cotyledon tissue of the F1 progeny and backcrosses from two doubled-haploid parental lines of B. juncea, one with relatively high myrosinase activity and one with relatively low myrosinase activity in cotyledon tissues. Myrosinase activity was measured in terms of the rate of hydrolysis of exogenous sinigrin by soluble protein extract of the cotyledons. Myrosinase activities of the parental lines were 0.63 nmol mg-1 min-1 (“High”) and 0.22 nmol mg-1 min-1 (“Low”) (P = 0.0001), and mean myrosinase activities for the F1 progeny were 0.35 nmol mg-1 min-1 (with Low as the maternal parent) and 0.51 nmol mg-1 min-1 (with High as the maternal parent). This pattern suggests a maternal effect on myrosinase activity, which is expected because of the maternally dominated genome of cotyledon tissue. In a set of reciprocal backcrosses, significant effects of the original parental lines on myrosinase activity occurred when these lines were pollen receivers in the backcross, not when they were pollinators, also supporting a maternal inheritance pattern. A significant (P < 0.05) but weak simple additive genetic inheritance of myrosinase activity was also detected. Key words: Myrosinase, myrosinase activity, glucosinolates, inheritance, Brassica juncea, cotyledons

Inheritance of a Variegated Leaf Pattern in Hexaploid Wheat 1

Crop Science ◽  
1966 ◽  
Vol 6 (1) ◽  
pp. 43-45 ◽  
Author(s):  
L. W. Briggle
Keyword(s):  
Hexaploid Wheat ◽  
Variegated Leaf

Variegation in Selaginella martensii f. albovariegata. I. Expression and inheritance

1982 ◽  
Vol 60 (11) ◽  
pp. 2375-2383 ◽  
Author(s):  
James A. Tanno ◽  
Terry R. Webster
Keyword(s):  
Cell Division ◽  
Chloroplast Dna ◽  
Maternal Inheritance ◽  
Leaf Growth ◽  
Green Growth ◽  
Wild Type ◽  
Reciprocal Crosses ◽  
Leaf Variegation ◽  
White Tissue ◽  
Stable Leaf

Selaginella martensii f. albovariegata is a variegated sport which produces distinctly white tissue in an irregular fashion. Typical specimens possess not only variegated branches but some branches exhibiting uniformly green growth and others showing completely white growth. Variegated and green branches often change in character as they grow, while white branches are stable. Leaf variegation patterns are highly variable and strongly influenced by the cell division patterns of early leaf growth. Reciprocal crosses between wild-type S. martensii and f. albovariegata show maternal inheritance of variegation, suggesting cytoplasmic control. Further crosses, involving progeny of selected reciprocal crosses, also indicate a lack of direct nuclear influence on variegation. The details of character expression and inheritance can be accounted for on the basis of a random sorting of normal and defective cytoplasmic factors at cell division. Recent characterizations of chloroplast DNA for several species of green plants suggest that the DNA molecules within the plastid may represent the sorting factor.

Expression of cell death genes during human preimplantation embryo development

1998 ◽  
Vol 5 (1) ◽  
pp. 149A-149A
Author(s):  
A JURISICOVA ◽  
S VARMUZA ◽  
N MACLUSKY ◽  
R CASPER
Keyword(s):  
Cell Death ◽  
Embryo Development ◽  
Preimplantation Embryo ◽  
Preimplantation Embryo Development ◽  
Cell Death Genes ◽  
Death Genes

Storage protein accumulation during zygotic and somatic embryo development in Picea abies (Norway spruce)

1990 ◽  
Vol 80 (3) ◽  
pp. 441-445 ◽  
Author(s):  
Inger Hakman ◽  
Priska Stahel ◽  
Peter Engstrom ◽  
Tage Eriksson
Keyword(s):  
Picea Abies ◽  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Storage Protein ◽  
Protein Accumulation ◽  
Somatic Embryo Development

Buried Narratives: Exhuming the Mother's Story in Oliver Twist

2018 ◽  
Vol 8 (3) ◽  
pp. 247-266
Author(s):  
Michelle L. Wilson
Keyword(s):  
Social Change ◽  
Maternal Inheritance ◽  
The Novel ◽  
Poor Law ◽  
The Family ◽  
The Law ◽  
First Time ◽  
Critical Consideration

Initially, Oliver Twist (1839) might seem representative of the archetypal male social plot, following an orphan and finding him a place by discovering the father and settling the boy within his inheritance. But Agnes Fleming haunts this narrative, undoing its neat, linear transmission. This reconsideration of maternal inheritance and plot in the novel occurs against the backdrop of legal and social change. I extend the critical consideration of the novel's relationship to the New Poor Law by thinking about its reflection on the bastardy clauses. And here, of course, is where the mother enters. Under the bastardy clauses, the responsibility for economic maintenance of bastard children was, for the first time, legally assigned to the mother, relieving the father of any and all obligation. Oliver Twist manages to critique the bastardy clauses for their release of the father, while simultaneously embracing the placement of the mother at the head of the family line. Both Oliver and the novel thus suggest that it is the mother's story that matters, her name through which we find our own. And by containing both plots – that of the father and the mother – Oliver Twist reveals the violence implicit in traditional modes of inheritance in the novel and under the law.

Rho-GTPase effector ROCK regulates mouse oocyte maturation and embryo development

2014 ◽  
Author(s):  
Xing Duan ◽  
Zhen-Bo Wang ◽  
Xiang-Shun Cui ◽  
Nam-Hyung Kim ◽  
Shao-Chen Sun
Keyword(s):  
Embryo Development ◽  
Oocyte Maturation ◽  
Rho Gtpase ◽  
Mouse Oocyte

Effect of dicamba on wheat haploid embryo development

2008 ◽  
Vol 36 (1) ◽  
pp. 43-51 ◽  
Author(s):  
S. Prodanovic ◽  
F. Matzk ◽  
D. Zoric
Keyword(s):  
Embryo Development ◽  
Haploid Embryo
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