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Question
Apomictic embryos in Citrus commonly arise from
Apomictic embryos in Citrus commonly arise from
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Solution
The correct option is B maternal sporophytic tissue in ovule
A special mechanism to produce seeds without fertilisation is apomixis, an asexual mode of reproduction that mimics sexual reproduction. In Citrus variety, apomictic embryo arises from the maternal sporophytic tissue in the ovule. Citrus normally have a polyembryony feature where nucellar cells surrounding the embryo sac divides and protrudes into the embryo sac and develop into the embryos. That is why in Citrus each ovule shows many embryos
Synergids are specialised cells that lie adjacent to the egg cell in the female gametophyte of flowering plants play an essential role in pollen tube guidance and function.
A micropyle is a minute opening in the ovule wall through which the pollen tube enter during fertilisation
A special mechanism to produce seeds without fertilisation is apomixis, an asexual mode of reproduction that mimics sexual reproduction. In Citrus variety, apomictic embryo arises from the maternal sporophytic tissue in the ovule. Citrus normally have a polyembryony feature where nucellar cells surrounding the embryo sac divides and protrudes into the embryo sac and develop into the embryos. That is why in Citrus each ovule shows many embryos
Synergids are specialised cells that lie adjacent to the egg cell in the female gametophyte of flowering plants play an essential role in pollen tube guidance and function.
A micropyle is a minute opening in the ovule wall through which the pollen tube enter during fertilisation
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