Cytogenetics of the vegetable crops

Yarnell, S. H.

doi:10.1007/bf02868757

Cited by 42 publications

(9 citation statements)

References 138 publications

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“…Somatic chromosome number, 2n=14 is constant for all the strains which agrees with earlier reports (Darlington and Janaki Ammal 1945, Yarnell 1962, Sharma and Chatterjee 1963, Sen and Tiwari 1966, Fauzdar and Tandem 1976, Sharma and Gupta 1982.…”

Section: Discussionsupporting

confidence: 91%

“…Notwithstanding the fact, that analysis of chromosomes of Pisum sativum has been studied earlier, no systematic analysis of the structure and behaviour of chromosomes of indigenous strains specially with a view to explore cryptic differences, if any, has been undertaken, except ing a few earlier records (Yarnell 1962, Sen and Tiwari 1966, Fauzdar and Tandem 1976, Sharma and Gupta 1982. In view of the vast potential of improved techiques of chromosome analysis, the present investigation was undertaken to analyse the minute structural differences of chromosomes at intraspecific level.…”

mentioning

confidence: 99%

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Cryptic structural differences at the interstrain level of Pisum sativum L.

Mukherjee

Sharma

1987

CYTOLOGIA

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Section: Discussionsupporting

confidence: 91%

mentioning

confidence: 99%

Cryptic structural differences at the interstrain level of Pisum sativum L.

Mukherjee

Sharma

1987

CYTOLOGIA

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“…The resistance was controlled by a single gene in homozygous recessive condition. This was later supported by Pierce (1948), Yarnell (1962), Cousin (1965), Marx (1971, Saxena et al (1975), Singh et al (1983), Mishra and Shukla (1984), Gupta (1987), Sarala (1993), Timmerman et al (1994), Rakshit (1997), Vaid and Tyagi (1997), Janila and Sharma (2004), and Srivastava and Mishra (2004). However, the inheritance of powdery mildew has not been totally unambiguous.…”

Section: Introductionmentioning

confidence: 86%

Development of a coupling-phase SCAR marker linked to the powdery mildew resistance gene ‘er1’ in pea (Pisum sativum L.)

et al. 2012

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Pea powdery mildew is one of the major constraints in pea production worldwide, causing severe seed yield and quality loss. The resistance is governed by a single recessive gene er1 in majority of resistant cultivars, but er2 and Er3 have also been reported. The objective of the study was to find out tightly linked SCAR markers to er1 gene using NILs. A total of 620 RAPD markers were screened for length polymorphism between seven sets of NILs. The 880 bp polymorphic band of the tightly linked RAPD marker OPX 04 880 was cloned, sequenced and a SCAR marker ScOPX 04 880 was developed. In a population of completely classified 208 F 2 plants (supported by phenotypic data from 208 F 2:3 and 4,390

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“…The first recorded interspecific hybridization in the genus Phaseolus dates back to 1855 and was between P vulgaris and P coccineus (Yarnell, 1965) . Mendel (1866) also crossed P vulgaris L. and • coccineus Lam .…”

Section: Introductionmentioning

confidence: 99%

Congruity backcrossing as a means of creating genetic variability in self pollinated crops: seed morphology of Phaseolus vulgaris L. and P. acutifolius A. Gray hybrids

1996

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Seeds of early generations of three reciprocal congruity-backcross (CBC) pedigrees, developed by backcrossing Phaseolus vulgaris -P acutifolius hybrids to each of the parent species in alternate generations, exhibited a preponderance of traits (size, shape, color, and pattern) of the cytoplasmic parent . The large size of `Red Cloud' (VI), the P vulgaris parent common to all of the pedigrees, dominated pedigrees with V l as the cytoplasmic parent, while the small size and rounded or square shapes of the tepary parents, wild P acutifolius var. acutifolius PI 263590 or G400445 (A19), wild P acutifolius var. latifolius PI 406622 (A10), or cultivated P acutifolius var. latifolius 'Serowi' PI 319443 (A9), were the majority phenotypes when P acutifolius was the cytoplasmic parent . Continuing through the second cycle of CBC, that is the second backcross with each of the parent species or the fourth backcross, began an amelioration of the apparent cytoplasmic effect on gene expression, as reciprocal pedigrees became more alike, usually with intermediate expression of parental traits or the appearance of new traits . The large seed size of V 1 was recovered in hybrids with P acutifolius cytoplasm and the kidney shape of V 1 became rare in hybrids with P vulgaris cytoplasm. Although the tepary-bean parents represented two subspecies and both cultivated and wild P acutifolius, the three sets of reciprocal-hybrid pedigrees with P vulgaris`Red Cloud' are surprisingly similar . It may be that the `exotic' parent used to develop a CBC pedigree should be selected more for combining ability in the interspecific cross than for specific economic traits . While the number of generations (six or more) required to produce fertile, intermediate CBC hybrids (that did not require embryo rescue) may preclude routine use of this method by practical plant breeders, the crossability of advanced hybrids with both parental species and the amount of variability apparent in advanced-hybrids progenies suggests that CBC would be valuable for maintaining `exotic' germplasm in immediately useful forms .

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Cytogenetics of the vegetable crops

Cited by 42 publications

References 138 publications

Cryptic structural differences at the interstrain level of Pisum sativum L.

Cryptic structural differences at the interstrain level of Pisum sativum L.

Development of a coupling-phase SCAR marker linked to the powdery mildew resistance gene ‘er1’ in pea (Pisum sativum L.)

Congruity backcrossing as a means of creating genetic variability in self pollinated crops: seed morphology of Phaseolus vulgaris L. and P. acutifolius A. Gray hybrids

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