Maintenance of male-sterile plants
Web5 mei 2024 · Male-sterile plants do not produce fertile pollen; hence, the seeds produced are by definition obtained by outcrossing. Male sterility exists in nature and is frequently used in hybrid breeding ... Web1 mrt. 2011 · In order to maintain a male-sterile line, it must be crossed to a sister line, the maintainer line, which has the identical nuclear genotype but a fertile cytoplasm. The maintainer line carries recessive restorer allele (s) ( rf ); therefore, it is male-fertile but creates sterile progeny when crossed to a sterile CMS plant (Fig. 2 a). Fig. 2
Maintenance of male-sterile plants
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Web3 mei 2024 · Feng et al. (1995, 1996) put forward the hypothesis of a genic multiple-allele male-sterile gene governing male sterility in four stable lines of Chinese cabbage with 100% male-sterile plants. The multiple-allele male-sterile gene was reported to be single locus with three alleles, viz. male-sterile allele ( Ms ), allele for fertility ( ms ) and fertility … Web2 dagen geleden · The male sterile line is also known as A line. The line used to maintain male sterile line is male fertile, B line. The A line is maintained by crossing it with B line …
WebSI has been reported to be preferred over male sterility in crop species with entomophilous pollination since pollen-collecting bees rarely visit male-sterile plants (Kaothien-Nakayama et al., 2010). Nonetheless, SI also may have disadvantages, for example, F 1 hybrids of two SI parents are also SI and this may be undesirable for crop production. WebMale sterile plants can be found in every leek cultivar. The male sterility trait can be explained by a nuclear monogenic inheritance or by a nucleo-cytoplasmic inheritance. The existence of a nucleo-cytoplasmic inheritance remains speculative unless the maintainer genotype will be identified.
WebVandaag · Sterility maintenance. Cytoplasmic sterility can be maintained as follows due to two different sorts of genotypes: Fertility restoration. Restoring fertility is not possible … WebMALE STERILITY, PROTOGYNY, AND POLLEN-PISTIL INTERFERENCE IN PLANTAGO MARITIMA (PLANTAGINACEAE), A WIND-POLLINATED, SELF-INCOMPATIBLE …
WebMale sterility refers to the degeneration or loss of function of male organs in bisexual plants. When male sterile lines are used to produce hybrids, the hybridization rate can …
Webmale sterile lines were developed later on in safflower by transferring the recessive male sterility gene in agronomically superior lines. It is well known that in a genetic male … jeff swalve american family insuranceWebNovel transgenic plants that have, stably integrated into their nuclear genome, a maintainer gene comprising a fertility-restorer gene and a pollen-lethality gene. The plants can be used to maintain a homogeneous population of male-sterile plants. oxford skin clinic oxfordWebPosts. PubChem ® is a registered trademark of the National Library of Medicine ® is a registered trademark of the National Library of Medicine jeff swanson attorney redding caWebA key component of this platform is a process termed Seed Production Technology (SPT). This process incorporates a transgenic SPT maintainer line capable of propagating … oxford skincare clinic oxfordWeb8 feb. 1995 · 1. A process for maintaining a male-sterile line of a plant species, said process comprising: 1) crossing: a) a male-sterile line to be maintained comprising male … oxford sleep advancesWeb3 mei 2024 · Background Male sterility is a useful agronomic trait for breeding of self-pollinating crops and is often observed in the progenies of hybrids of distantly related … jeff swampy marsh cartoonsWebinfluencing the gender of plants in a gynodioecious species and the maintenance of gynodioecy in populations is the genetic basis of gender inheritance. Male sterility mutations, causing strictly female plants, can arise in either nuclear or cytoplasmic genes. jeff swampy marsh