Nuclear-cytoplasmic interactions in restoration of male fertility in the ‘9E’ and A4 CMS-inducing cytoplasms of sorghum

Elkonin, L. A.; Kozhemyakin, V. V.; Ishin, A. G.

doi:10.1007/s001220050938

Cited by 18 publications

(13 citation statements)

References 17 publications

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“…The F 1 male sterility occurred when the cytoplasm of N8855 was incompatible with certain new nucleus. Cytoplasmic gene(s) mutation was caused by nuclear substitution (Levings & Brown, 1989;Elkonin et al, 1998). Some unknown genes, including polygenes, interacted with the nuclear male sterility gene(s).…”

Section: The Genetic Explanation Of the Development Of Njcms1amentioning

confidence: 99%

Inheritance of male fertility restoration of the cytoplasmic-nuclear male-sterile line NJCMS1A of soybean [Glycine max (L) Merr.]

Bai

Gai

2005

Euphytica

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At present, no report on inheritance of male fertility restoration has been released, yet more than 10 cytoplasmicnuclear male-sterile soybean lines as well as their maintainers and restorers have been developed. Based on our previous work, 25 restorers for the male-sterile line NJCMS1A were identified and the inheritance of male fertility restoration for these restorers was studied. The results showed that F 1 s between NJCMS1A and its restorers were completely male-fertile.

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Section: The Genetic Explanation Of the Development Of Njcms1amentioning

confidence: 99%

Inheritance of male fertility restoration of the cytoplasmic-nuclear male-sterile line NJCMS1A of soybean [Glycine max (L) Merr.]

Bai

Gai

2005

Euphytica

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“…Expression of CMS in plant system is the consequence of certain deleterious interactions between its mitochondrial and nuclear genomes, which adversely affects the process of microsporogenesis (Kaul, ). Elkonin, Kozhemyakin, and Ishin () observed that such interactions at the molecular level often induce changes at specific sites within mitochondrial genome. Hanson and Bentolila () postulated that certain unusual open‐reading frames (ORFs) which code for a polypeptide chain are responsible for the expression of CMS, while the male fertility is restored by specific nuclear genes, which encode through the production of pentatricopeptide.…”

Section: Discussionmentioning

confidence: 99%

Maternal inheritance of male sterility in the progeny of a natural hybrid between Cajanus lineatus and C. cajan

et al. 2018

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Adoption of pigeonpea hybrids in central and southern India is showing high impact with on‐farm yield advantages of >30%. The hybrid pigeonpea technology, the first in any legume crop, is based on a cytoplasmic‐nuclear male‐sterility (CMS) system. For a long‐term sustainability of hybrid programme, it is imperative that both nuclear diversity and cytoplasmic diversity are maintained among hybrid parents. In this context, a continuous search for new CMS‐inducing cytoplasms is necessary. This paper reports detection of maternal inheritance of male sterility in the progeny derived from a natural hybrid between a wild relative [Cajanus lineatus (W. & A.) Maesen comb. nov.] of pigeonpea and an unknown pigeonpea [Cajanus cajan (L.) Millsp.] genotype. In the present study, the male sterility was maintained up to BC7F1 generation by an advanced breeding pigeonpea line ICPL 99044. This male sterility inducing cytoplasm of C. lineatus was tagged as A6. In future, this CMS genetic stock can be used to develop a range of new pigeonpea hybrids with high yield and adaptation.

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“…To construct a male sterile counterpart of line AS 1a, we used the CMS line A3 Feterita 14, which had a A3 type sterile cytoplasm (IS1112C), causing male steril ity in the vast majority of fertile sorghum lines [21], and line 9E Zheltozernoe 10, which had a 9E type cytoplasm (IS12603), also having a potent sterilizing effect [22]. The F 1 hybrids of line AS 1a with these CMS lines were completely male sterile and were used to obtain backcross hybrids, which were subject to cytoembryological analysis and were used for test crosses with line V 4v, starting from BC 2 or BC 3 .…”

Section: Methodsmentioning

confidence: 99%

Expression of the apomictic potential and selection for apomixis in sorghum line AS-1a

2012

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Expression of elements of apomixis was studied for ten seasons in sorghum line AS 1a and its backcross hybrids in the 9E and A3 sterile cytoplasms. Cytoembryological analysis revealed aposporous embryo sacks (apo ESs), their initial cells, and, rare, parthenogeneic proembryos in ovules of line AS 1a and its BC 2 and BC 3 hybrids on the 9E cytoplasm. The A3 sterile cytoplasm suppressed the development of par thenogenetic proembryos, but did not affect the apo ES formation. The frequency of apomictic elements increased in seasons with high daily temperatures and total precipitation deficiency in the period of ovule and megagametophyte development (r = -0.805, p < .01). Selection was used to isolate the families where the fre quency of ovules with apo ESs was 28% and the frequency of parthenogenetic proembryos was 14%. Emas culated panicles of line AS 1a were pollinated with pollen of line Volzhskoe 4v, which carried the Rs marker dominant gene, responsible for the anthocyan color of coleoptyles and leaves in seedlings. Plants of the maternal type were found in the progenies of these crosses at a frequency of 1.4-28.1%. The genetic structure of the endosperm in grains with maternal type seedlings was inferred from the electrophoretic patterns of storage proteins (kafirins). The kafirin spectra of grains producing maternal type seedlings was similar to the spectrum of line AS 1a and differed from the spectra of grains producing hybrid seedlings, indicating that the endosperm developed autonomously when apomictic grains formed in line AS 1a. The results showed that lines with facultative apomixis can be constructed in functionally diploid plants.

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Nuclear-cytoplasmic interactions in restoration of male fertility in the ‘9E’ and A4 CMS-inducing cytoplasms of sorghum

Cited by 18 publications

References 17 publications

Inheritance of male fertility restoration of the cytoplasmic-nuclear male-sterile line NJCMS1A of soybean [Glycine max (L) Merr.]

Inheritance of male fertility restoration of the cytoplasmic-nuclear male-sterile line NJCMS1A of soybean [Glycine max (L) Merr.]

Maternal inheritance of male sterility in the progeny of a natural hybrid between Cajanus lineatus and C. cajan

Expression of the apomictic potential and selection for apomixis in sorghum line AS-1a

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