Studies on Abnormal Meiosis Producing 2n Pollens in Nonastringent Persimmon (Diospyros Kaki Thunb.)

ACTA HORTICULTURAE SINICA ›› 2003, Vol. 30 ›› Issue (02): 135-140.

• 研究论文 • Previous Articles Next Articles

Studies on Abnormal Meiosis Producing 2n Pollens in Nonastringent Persimmon (Diospyros Kaki Thunb.)

Gu Xiaofeng¹;Luo Zhengrong^1,2*

(¹ College of Horticulture and Forestry，Huazhong Agricultura University,Wuhan 430070,China;² Department of Horticulture, Hubei Institute for Nationalities，Enshi 445000，China)

Received:2002-08-15 Revised:2002-10-28 Online:2003-04-25 Published:2003-04-25

Abstract

Abstract: The objective of this study was to determine the eytolngieal origin of 2n posen in ‘Zenjiman’ persimmon．Pollen mother cel analyses revealed that 2n polen resulted from fused spindles，triange spindles，or abnormal disorientation of sister ehromatid during metaphase II and anaphase II of mierosporogenesis．94.8% of 2n po len formation was controled by fused spindles and triange spindles ，which were genetically equivalent to first division restitution(FDR)type of gamete formation．The other 2n polens were genetically equivalent to second division restitution (SDR)type of gam ete formation．Thus 2n polen produced from IjiIIlal1l persimmon call provide potential value for po lyploidy breeding in persimmon．
Key words：

Key words: Persimmon, 2n pollen, Meiosis

CLC Number:

S 665．2

Gu Xiaofeng;Luo Zhengrong;. Studies on Abnormal Meiosis Producing 2n Pollens in Nonastringent Persimmon (Diospyros Kaki Thunb.)[J]. ACTA HORTICULTURAE SINICA, 2003, 30(02): 135-140.

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Studies on Abnormal Meiosis Producing 2n Pollens in Nonastringent Persimmon (Diospyros Kaki Thunb.)

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