Female somatic cells have two pairs of autosomes and two pairs of sex chromosomes (2n = 8), whereas male somatic cells have two pairs of autosomes and two monosomic
sex chromosomes (2n - 2 = 6) (Fig.
Chi-square analysis of the F2 segregation data between a set of monosomic
susceptible cultivars Triticum spelta and Early Premium revealed that the genes effective against race 2E16 are located on chromosomes 3B, 4D and 5D, and temporarily designated as YrEP1, YrEP2 and YrEP3, respectively.
Eight Ptr isolates--ASC1a, ASC1b, 86-124a, Nubr-1, Rog5/ 04, DTR 1-2000, and DTR 12-2000--were used for the development of differential varieties, while only the most virulent isolate (ASC1b) was used for the screening of synthetic lines and monosomic
Cases were deemed monosomic
by CI if the CIs for uveal melanoma cases were less than 3 standard deviations from the normal disomy control mean, that is, less than 1.76.
92RL28 was crossed as male parent with (i) a CS plant ditelosomic for chromosome arm 7DS and (ii) a segregate from the cross 89M88 ('Indis'//'Inia 66' monosomic
7D/CS DTTDLMTTDS/3/Inia 66) that was monotelodisomic for 7DL.
The percentage of nuclei with one chromosome 3 that is set as the threshold for calling the tumor monosomic
for chromosome 3 is somewhat arbitrary and may lead to false-negative or false-positive results.
RWA-resistant genes were localized on individual chromosomes and arms by using monosomic
and ditelosomic analyses and, more recently, through the use of molecular markers.
tabacum individuals monosomic
for chromosome H is relatively simple, and monosomic
analysis (Clausen and Cameron, 1944) was used to determine which accessions, if any, actually possessed the N gene on chromosome H.
barbadense chromosome or segment per line to create a monosomic
substitution stock, and (iii) recovery of the euploid, disomic substitution line, by inbreeding.
A reciprocal monosomic
analysis of the genetic control of time of ear emergence, number of leaves and number of spikelets in wheat (Triticum aestivum L).
and ditelosomic analysis provided evidence that the resistance gene was transferred to chromosome arm 1BL (41% recombination with centromere) (Dvorak and Knott, 1980).
The plant materials used were (i) five resistant hexaploid winter wheat genotypes, including cultivars Coker 76-35, Hadden, Missouri Queen, Red Chief and line 81IWWMN 2095, and resistant hexaploid spring wheat line 86ISMN 2137; (ii) susceptible hexaploid spring wheat cultivars Kenyon and Chinese Spring; and (iii) a complete set of Chinese Spring monosomic
lines, a monotelosomic 3AS line and lines ditelosomic for 2AS, 2AL, 3AS, and 3AL.