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Seedless mechanism of a new citrus cultivar ‘Huami Wuhegonggan’ (Citrus sinensis × C. reticulata)
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نویسنده
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qin y.h. ,xu c. ,ye z.x. ,da silva j.a.t. ,hu g.b.
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منبع
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pakistan journal of botany - 2015 - دوره : 47 - شماره : 6 - صفحه:2369 -2378
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چکیده
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In this study,the seedless mechanism of a new citrus cultivar ‘huami wuhegonggan’ (hmwg) (citrus sinensis x c. reticulata) was assessed. results from pollen number per anther,abnormal pollen frequency,pollen viability and germination frequency analyses suggested that hmwg pollen had low fertility. thus,male sterility contributed partly to the seedlessness of hmwg. embryonic development of self- and cross-pollinated hmwg was abnormal. after self- and cross-pollination,globular and heart-shaped embryos were observed after 2-3 weeks and heart- and torpedo-shaped embryos were detected at 4 weeks. however,embryos began to degenerate at 5 weeks and debris from degenerated embryos,or an empty cavity,was observed in the ovary at 7 weeks. these results demonstrate that seedlessness of hmwg results from male sterility and embryo abortion. © 2015,pakistan botanical society. all rights reserved.
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کلیدواژه
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Citrus; Embryo abortion; Male sterility; Seedless mechanism
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آدرس
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state key laboratory for conservation and utilization of subtropical agro-bioresources/key laboratory of biology and genetic improvement of horticultural crops-south china,ministry of agriculture college of horticulture,south china agricultural university, China, state key laboratory for conservation and utilization of subtropical agro-bioresources/key laboratory of biology and genetic improvement of horticultural crops-south china,ministry of agriculture college of horticulture,south china agricultural university, China, state key laboratory for conservation and utilization of subtropical agro-bioresources/key laboratory of biology and genetic improvement of horticultural crops-south china,ministry of agriculture college of horticulture,south china agricultural university, China, p. o. box 7 miki-cho post office,ikenobe, Japan, state key laboratory for conservation and utilization of subtropical agro-bioresources/key laboratory of biology and genetic improvement of horticultural crops-south china,ministry of agriculture college of horticulture,south china agricultural university, China
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Authors
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